Crystal oscillator frequencies

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Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz. Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors. Using frequency dividers, frequency multipliers and phase locked loop circuits, it is practical to derive a wide range of frequencies from one reference frequency.

The UART column shows the highest common baud rate (under 1,000,000), assuming a clock pre-divider of 16 is resolved to an exact integer baud rate. Though some UART variations have fractional dividers, those concepts are ignored to simplify this table.

Frequency (MHz) comm UART A/V RTC Notes and Primary uses
0.032000 Yes Real-time clock, watches; allows binary division to 1 kHz signal (25×1 kHz).
0.032768 Yes 215 allows binary division to 1 Hz. Real-time clock, quartz watches and clocks; common low-speed for microcontrollers. Very common. Available as TCXO.[1]
0.038000 Used with FM stereo encoder chip BA1404 and similar, also seen in DMMs
0.065536 Yes 216 allows binary division to 1 Hz & 32.768 kHz. Real-time clock.
0.077500 Yes Real-time clock, quartz watches and clocks; also the DCF77 frequency
0.100000 Yes 105 allows decade division to 1 Hz & 1 kHz. Real-time clock, quartz watches and clocks, DMM dual slope ADCs (suppresses 50 Hz noise)
0.120000 Yes DMM dual slope ADCs (suppresses 60 Hz noise)
0.131072 Yes 217 allows binary division to 1 Hz & 32.768 kHz. Found in Fluke 17/19 DMM's[citation needed]
0.262144 Yes 218 allows binary division to 1 Hz & 32.768 kHz. Found in Bulova Precisionist high-frequency quartz watches.[2]
0.383000 ceramic resonator, in eg. Polaroid Sonia Transducer for distance[3]
0.429000 radio (filter) Ceramic resonator used in some intermediate frequency filters. Common in oscillators of 36 kHz infrared remote controls (divided by 12)
0.455000 radio (filter) Ceramic resonator used in FM broadcasting intermediate frequency filters. Common in oscillators of 38 kHz infrared remote controls (divided by 12), cheaper than crystal but less stable frequency
0.460800 28800 radio ceramic resonator used in HART. UART clock allows integer division to common baud rates up to 28,800(x16x1) or 57,600(x8x1).
0.480000 radio (filter) Ceramic resonator used in some intermediate frequency filters and low-cost oscillators. Also used in DTMF generator oscillators.
0.500000 radio (filter) Ceramic resonator used in some intermediate frequency filters and low-cost oscillators
0.524288 Yes 219 allows binary division to 1 Hz & 32.768 kHz.
1.000 106 allows decade division to 1 Hz & 1 kHz. Reference frequency. Common standard frequency. Harmonics fall on integer MHz frequencies.
1.048576 Yes 220 allows binary division to 1 Hz & 32.768 kHz. Real-time clock.
1.008 1200 UART clock allows integer division to common baud rates up to 1,200(x8x105). Used in some 1200 baud modems.
1.544 DS1 Bit clock for DS1 systems (±32 ppm, ANSI T1.102).
1.8432 115200 UART clock allows integer division to common baud rates up to 115,200(x16x1) or 230,400(x8x1). Since older UARTs used this frequency to derive common baud rates up to 115,200, then multiples of this frequency are able to do the same, such as 3.6864 / 5.5296 / 7.3728 / 9.216 / 11.0592 / 12.9024 / 14.7456 / 16.5888 / 18.432 / 20.2752 / 22.1184 / 23.9616 / 25.8048 / 27.648 / 29.4912 / 31.3344 / 33.1776 / 35.0208 / 36.864 / ..., and is why these MHz frequencies are commonly used.
2.048 E1 Allows binary division to 1 kHz (211×1 kHz). Bit clock for E1 systems (+-50 ppm, ITU G3703).
2.097152 Yes 221 allows binary division to 1 Hz & 32.768 kHz; real-time clock; also for DDS generators with 1 Hz step
2.4576 38400 UART clock allows integer division to common baud rates up to 38,400(x16x4) or 76,800(x16x2).
2.500 Ethernet Ethernet clock for 10 Mbit/s
2.560 Allows binary division to 10 kHz (28×10 kHz)
2.8224 2400 audio Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz (64×44.1 kHz), 22.05 kHz, and 11.025 kHz. DSD64 bitrate. Frequencies also used are 5.6448 MHz, 11.2896 MHz, 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
2.880 7200 UART clock allows integer division to common baud rates up to 7,200(x16x25) or 14,400(x8x25). Audio clock allows integer division for 48 / 96 / 192 ksps.
3.072 128000 audio Yes Allows binary division to 3 kHz (210×3 kHz); can be used to generate 60 Hz signals (51200×60 Hz). Used in audio systems, for 48 kHz (64x), 96 kHz (32x), 192 kHz (16x), 384 kHz (8x)
3.088 DS1 2×1.544, the bit clock for DS1 systems (±32 ppm, ANSI T1.102). Available as TCXO and OCXO.
3.2768 Yes Allows binary division to 100 Hz (32,768×100 Hz, or 215×100 Hz) and to 50 Hz, used in e.g. wattmeters and DC-AC converters
3.575611 PAL PAL M color subcarrier
3.579545 NTSC NTSC M color subcarrier; see colorburst. More specifically, 315/88 = 3.57954 MHz. Because these are very common and inexpensive they are used in many other applications, for example DTMF generators
3.582056 PAL PAL-N color subcarrier
3.595295 NTSC NTSC M color subcarrier, plus horizontal scan rate (15,750). Used for a rainbow color test, produces color through the entire 360 degrees of phase shift. Unusual.[4]
3.640 radio 8×455 kHz AM broadcast band intermediate frequency; also often used in infrared remote controls as the clock source
3.6864 W-CDMA 230400 UART clock allows integer division to common baud rates up to 230,400(x16x1) or 460,800(x8x1). Also used in W-CDMA systems.
3.93216 Yes allows binary division to 60 Hz (65536×60 Hz, 216×60 Hz), used e.g. in wattmeters, DC-AC converters and NTSC vertical sync generators
4.000 Common general low-power microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost.
4.032 7200 UART clock allows integer division to common baud rates up to 7,200(x16x35) or 14,400(x8x35), used for some 1200, 2400, and 4800 baud modems.
4.096 ISDN 256000 Yes Allows binary division to 1 kHz (212×1 kHz). Used in ISDN systems.
4.190 Ceramic resonator used in some intermediate frequency filters and low-cost oscillators, common
4.194304 Yes 222 allows binary division to 1 Hz & 32.768 kHz. Real-time clock. For DDS generators with 1 Hz step. Also found in the original Game Boy.
4.320 1800 Yes Used for measuring 1pps deviations in 1/50th seconds per day (24h x 60m x 60s x 50). UART clock allows integer division to common baud rates up to 1,800(x16x150) or 7,200(x8x75). Audio clock allows integer division for 48 / 96 ksps.
4.332 RDS 3648× the RDS signal bit rate of 1187.5 bit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
4.43361875 PAL/NTSC PAL B/D/G/H/I and NTSC M4.43 color subcarrier. Also used in Compact Disc players and recorders where the crystal frequency is slightly pulled to 4.41 MHz and then divided by 100 to give the 44.1 kHz sampling frequency.
4.608 57600 audio Yes UART clock allows integer division to common baud rates up to 57,600(x16x5) or 115,200(x8x5). Audio clock allows integer division for 48 / 96 / 192 ksps. Allows integer division to 1024 kHz and binary division to lower frequencies that are whole multiples of 1 Hz. Common microcontroller clock frequency. Frequency of the Master Timing Unit (MTU) OCXO of the Space Shuttle.[5][6]
4.7547 radio (ISM) Oscillator for 315 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (common Chinese ISM band use for small RF remote controls), multiplied 64x (4.7547*64+10.7=315) [7]
4.897 Reference clock for some 315 MHz transmitters and receivers, e.g. garage door openers. (Alternative frequencies for the same chipsets: 6.0630 MHz for 390 MHz, 6.4983 MHz for 418.00 MHz, 6.7458 MHz for 433.92 MHz; swapping them can swap the band.)
4.9152 CDMA 38400 Used in CDMA systems; divided to 1.2288 MHz baseband frequency as specified by J-STD-008. UART clock allows integer division to common baud rates up to 38,400(x16x8) or 76,800(x8x4).
5.000 Common standard frequency. Commonly available as TCXO and OCXO.
5.034965 NTSC Integer multiple of the 59.94 Hz (84000x) vertical refresh and the 15.734 kHz (320x) horizontal scan rates
5.0688 57600 UART clock allows integer division to common baud rates up to 14,400(x16x22) or 57,600(x8x11).
5.120 Yes Allows binary division to 10 kHz (29×10 kHz)
5.185 radio Used in radio transceivers, clock for some microcontrollers
5.5296 115200 UART clock allows integer division to common baud rates up to 115,200(x16x3) or 230,400(x8x3).
5.6448 14400 audio Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz (128×44.1 kHz), 22.05 kHz, and 11.025 kHz. DSD128 bitrate (2x 2.8224 MHz). Frequencies also used (multiplies of 5.6448) are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
6.000 USB Common in low-speed (1.5Mbit/s) USB devices such as computer keyboards.
6.063 Reference clock for some 390 MHz transmitters and receivers, e.g. garage door openers. (Alternative frequencies for the same chipsets: 4.8970 MHz for 315.00 MHz, 6.4983 MHz for 418.00 MHz, 6.7458 MHz for 433.92 MHz; swapping them can swap the band.)
6.144 38400 audio Yes Digital audio systems - DAT, MiniDisc, sound cards; 128×48 kHz (27×48 kHz). UART clock allows integer division to common baud rates up to 38,400(x16x10) or 256,000(x8x3).
6.176 DS1 4x 1.544, the bit clock for DS1 systems (±32 ppm, ANSI T1.102). Available as TCXO and OCXO.
6.400 Binary multiple of 100 kHz (64×100 kHz), 50 kHz, 25 kHz, 12.5 kHz. Half of the common standard 12.8 MHz.
6.4512 57600 21×307.2 kHz; UART clock allows integer division to common baud rates up to 57,600(x16x7) or 115,200(x8x7).
6.480 SONET 28800 Used to generate (x8) 51.84 MHz, the SONET STS-1 frequency (with accuracy of 20 =ppm).[8]
6.4983 Reference clock for some 418 MHz transmitters and receivers, e.g. TV remote extenders or wireless sensors. (Alternative frequencies for the same chipsets: 4.8970 MHz for 315.00 MHz, 6.0630 MHz for 390 MHz, 6.7458 MHz for 433.92 MHz; swapping them can swap the band.)
6.5536 Allows binary division to 100 Hz (65,536×100 Hz, or 216×100 Hz); used also in red boxes
6.6128 radio (ISM) Oscillator for 433.92 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (common ISM band use for small RF remote controls), multiplied 64x (6.6128*64+10.7=433.92) [9]
6.7458 Reference clock for some 433.92 MHz ISM band transmitters and receivers, e.g. wireless sensors. (Alternative frequencies for the same chipsets: 4.8970 MHz for 315.00 MHz, 6.0630 MHz for 390 MHz, 6.4983 MHz for 418.00 MHz; swapping them can swap the band.) Available as TCXO.
6.750 SDTV SDTV NTSC 4:3 pixel clock (352x480i@29.97)
7.023 Amateur Radio CW Paradise in China, A common QRP Frequency.[10]
7.15909 NTSC NTSC M color subcarrier (2×3.579545 MHz)
7.200 DARC 1800 UART clock allows integer division to common baud rates up to 1,800(x16x250) or 7,200(x8x125). Audio clock allows integer division for 48 / 96 ksps. Half of the more common 14.4 MHz. Reference clock for DARC.
7.3728 460800 UART clock allows integer division to common baud rates up to 460,800(x16x1) or 921,600(x8x1).
7.600 Radio PLL clock for pilot tone (400x19 kHz) in FM stereo.
8.000 CAN Used in CAN bus systems and with many small microcontroller systems. Common general microcontroller frequency (i.e. STM32 Nucleo boards, 3.3V AVR-based Arduino boards). Common as cheap ceramic resonators where frequency stability is less concern than cost.
8.184 GPS Half the 16.368 MHz frequency; same use in different chipsets. 8 times the 1.023 MHz C/A GPS signal chipping rate. Multiplied by 192.5 to get the 1575.42 MHz L1 frequency and multiplied by 150 to get the 1227.60 MHz L2 frequency.
8.192 ISDN 256000 audio Yes Allows binary division to 1 kHz (213×1 kHz). Used in ISDN systems. Used in OKI Speech Processor. Common audio clock, 256×32 kHz (see also 11.2896, 12.288, 16.384, 18.4323, 22.5792, 24.576 MHz). Typical TDM/PCM audio interface clock, 1/6 of 49.152 MHz.[11]
8.388608 Yes 223 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
8.4672 1800 audio Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz (192×44.1 kHz), 22.05 kHz, and 11.025 kHz. UART clock allows integer division to common baud rates up to 1,800(x16x294) or 7,200(x8x147). Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
8.664 RDS The RDS signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
8.86724 PAL PAL B/G/H color subcarrier (2×4.433618 MHz)
9.000 SDTV SDTV PAL/NTSC 16:9 pixel clock (480x480i@29.97, 480x576i@25)
9.216 576000 audio Yes UART clock allows integer division to common baud rates up to 115,200(x16x5) or 576,000(x16x1). Audio clock allows integer division for 48 / 96 / 192 ksps. Allows integer division to 1024 kHz and binary division to lower frequencies that are whole multiples of 1 Hz. Master clock for some Japanese variants of DOCSIS.
9.29063 radio (ISM) Oscillator for 308 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (less common band used for small RF remote controls), multiplied 32x (9.29063*32+10.7=308) [12]
9.50939 radio (ISM) Oscillator for 315 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (common Chinese ISM band used for small RF remote controls), multiplied 32x (9.50939*32+10.7=315) [13]
9.54545 NTSC 2/3 of the 14.31818 MHz NTSC clock, 1/3 of the 28.636 MHz clock; common clock for microcontrollers and older processors. Exactly 210/22  MHz.
9.600 4800 UART clock allows integer division to common baud rates up to 4,800(x16x125) or 9,600(x8x125). Available as TCXO and OCXO. Used in 19.2 and 48 MHz PLL generators. Can be used as seed clock for 48 and 60 GHz PLL oscillators and in frequency synthetizers for mobile radio as the common channel spacings can be easily derived.[14]
9.8304 CDMA 38400 Used in CDMA systems (2×4.9152 MHz); divided to 1.2288 MHz baseband frequency. UART clock allows integer division to common baud rates up to 38,400(x16x16) or 76,800(x8x16).
9.84375 radio (ISM) used as clock in some 315 MHz remote fob and IoT transmitters (multiplied by 32); 13.560 MHz used for 433.92 MHz
9.900 SDTV SDTV NTSC pixel clock (528x480i@29.97)
10.000 107 allows decade division to 1 Hz & 1 kHz. Common standard frequency. Commonly available as TCXO, the most common OCXO and GPS-disciplined oscillator available. Common stratum 3 Network Time Protocol frequency.[15] Common general microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost.
10.125 SDTV SDTV PAL/NTSC pixel clock (544x480i@29.97, 544x576i@25)
10.230 GPS Found in some GPS receivers. Equals the P(Y) GPS signal chipping rate. 10 times the 1.023 MHz C/A GPS signal chipping rate. Multiplied by 154 to get the 1575.42 MHz L1 frequency and multiplied by 120 to get the 1227.60 MHz L2 frequency. Available as OCXO and TCXO.
10.240 DOCSIS/TD-SCDMA Yes Allows binary division to 10 kHz (210×10 kHz). Common as a clock in CB radio PLL frequency synthesizers to generate the 5 kHz or 10 kHz reference signal.[16] Used in frequency synthesizers in some cordless phones and in many radio frequency transceivers. Master clock for DOCSIS/EuroDOCSIS. Used in cable modem termination systems. Used to derive symbol and chip rate in conventional TD-SCDMA systems. Available as OCXO and TCXO.
10.245 FM radio Used in radio receivers; mixes with 10.7 MHz intermediate frequency (IF) yielding 455 kHz signal, a common second IF for FM radio[17]
10.368 DECT 14400 Reference clock for DECT phones. Available as TCXO. Other frequencies are 13.824 and 20.736 MHz. UART clock allows integer division to common baud rates up to 14,400(x16x45) or 28,800(x8x45)
10.416667 Ethernet Multiplied by 12 to 125 MHz Gigabit Ethernet GMII GTXCLK clock, FDDI clock
10.70 FM radio most common crystal or ceramic resonator for first intermediate frequency filter in FM radio; common in other applications due to ubiquity and low cost, filter bandwidth varies (eg. +-250/230/180/150/110 kHz to both sides from the 10.7 MHz frequency)
11.0592 230400 UART clock allows integer division to common baud rates up to 230,400(x16x3) or 460,800(x8x3); common clock for Intel 8051 microprocessors[18]
11.2896 14400 audio Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz (256×44.1 kHz), 22.05 kHz, and 11.025 kHz. DSD256 bitrate (4x 2.8224 MHz). Frequencies also used are 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz. UART clock allows integer division to common baud rates up to 14,400(x16x49) and 28,800(x8x49).
11.454544 teletext Used in some teletext circuits; 2×5.727272 MHz (clock frequency of NTSC M teletext; PAL B uses 6.9375 MHz, SECAM uses 6.203125 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
11.520 28800 UART clock allows integer division to common baud rates up to 28,800(x16x25) or 57,600(x8x25).
12.000 USB/CAN Used in USB 1.0 and 2.0 systems (with accuracy of 500 ppm) as the reference clock for the full-speed PHY rate of 12 Mbit/s, or multiplied up using a PLL to clock high speed PHYs at 480 Mbit/s; common clock for Intel 8051 microprocessors;[18] also used in CAN bus systems. Common general microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost.
12.272727 SDTV Clock rate for exactly square pixels in interleaved 4:3 640x480i@29.97 NTSC video ( MHz). In practice the more commonly available 12.288 MHz frequency is close enough for most applications.
12.288 76800 audio Yes Digital audio systems - DAT, MiniDisc, sound cards; 256×48 kHz (28×48 kHz). UART clock allows integer division to common baud rates up to 76,800(x16x20) or 256,000(x16x3)
12.352 DS1 8x 1.544, the bit clock for DS1 systems (±32 ppm, ANSI T1.102). Available as TCXO and OCXO.
12.40625 teletext Used in some teletext circuits; 2×6.203125 MHz (clock frequency of SECAM teletext; PAL B uses 6.9375 MHz, NTSC M uses 5.727272 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
12.72813 radio (ISM) Oscillator for 418 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (less common band used for small RF remote controls), multiplied 32x (12.72813*32+10.7=418) [19]
12.800 Common standard frequency, common reference clock; binary multiple of 100 kHz (128×100 kHz), 50 kHz, 25 kHz, 12.5 kHz. Commonly available as TCXO and OCXO. Common stratum 3 frequency.[15]
12.9024 115200 UART clock allows integer division to common baud rates up to 115,200(x16x7) or 230,400(x8x7)
12.960 1800 UART clock allows integer division to common baud rates up to 1,800(x16x450) or 7,200(x8x225)
13.000 GSM/UMTS Commonly used as a reference clock for GSM and UMTS handsets. (13 MHz is exactly 48 times the GSM bit rate). Commonly available as TCXO and OCXO.
13.22563 radio (ISM) Oscillator for 433.92 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency (less common band used for small RF remote controls), multiplied 32x (13.22563*32+10.7=433.12) [20]
13.500 SDTV Master clock for PAL/NTSC DVD players, Digital TV receivers, etc. (13.5 MHz is an exact multiple of the PAL and NTSC line frequencies); pixel clock for 4:3 SDTV PAL/NTSC (720x480i@29.97, 720x576i@25, 352x480p@59.94). CCIR-601 PAL samplerate (864x625 resolution incl. blanking, or 720x576 visible), CCIR-601 NTSC samplerate (858x525 incl. blanking, 720x480 visible)
13.5168 76800 UART clock allows integer division to common baud rates up to 76,800(x16x11)
13.560 RFID Common contactless smartcard frequency (ISO/IEC 14443). Also used as clock in some 433.92 MHz remote fob transmitters (multiplied by 32); 9.84375 MHz used for 315 MHz
13.824 DECT 57600 Reference clock for DECT phones. Available as TCXO. UART clock allows integer division to common baud rates up to 57,600(x16x15) or 576,000(x8x3). Other frequencies are 10.368 and 20.736 MHz.
13.875 teletext Used in some teletext circuits; 2×6.9375 MHz (clock frequency of PAL B teletext; SECAM uses 6.203125 MHz, NTSC M uses 5.727272 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
14.112 1800 audio Digital audio systems - 294×48 kHz, 320x44.1 kHz. UART clock allows integer division to common baud rates up to 1,800(x16x490) or 7,2000(x8x245). Available as TCXO.
14.250 FM radio PAL used as sampling frequency for ADCs for digitizing the 10.7 MHz intermediate frequency in software defined radio implementations of AM/FM radio receivers.[21] Pixel clock of some PAL CCD cameras (raw image resolution of 912x625).[22] Used in PAL version in some early Apple computers, e.g. Apple II Europlus.
14.318182 NTSC NTSC M color subcarrier (4×3.579545 MHz). Common seed clock for modern PC motherboard clock generator chips, clock for ISA bus, also common on CGA and VGA cards and in some 8-bit computers. Exactly 315/22 MHz. 4f(sc) sampling for NTSC or 525/60 (raw image size 910x525, visible 768x475), SMPTE 244M standard.
14.350 NTSC Pixel clock of some NTSC CCD cameras.[22]
14.400 PDC 7200 UART clock allows integer division to common baud rates up to 7,200(x16x125) or 14,400(x8x125). Also a reference clock for PDC clock. Reference clock of some consumer GPS receivers.[23]
14.7456 921600 UART clock allows integer division to common baud rates up to 921,600(x16x1); common clock for small microcontrollers
14.750 SDTV Clock rate for exactly square pixels in SDTV PAL 4:3 interleaved 768x576i@25 video ( MHz). In practice the more commonly available 14.7456 MHz frequency is close enough for most applications.
14.850 Used in some transceivers and cellular radios as a reference clock for frequency synthesis. Available as TCXO.
15.000 Used as clock in ZX8301 computer (divided to 7.5 MHz). Frequency used in photoacoustic imaging. Sometimes available as OCXO. Used in dual-frequency 315/390 MHz RF key fobs (multiplied by 21 or 26).[24]
15.360 3G 38400 Yes UART clock allows integer division to common baud rates up to 38,400(x16x25) or 128,000(x8x15). Also used as a 3G reference clock.[25] Used as reference clock in some Bluetooth systems.
15.600 Used in Kenwood TS-590 transceivers. Audio clock allows integer division for 48 ksps. Available as TCXO.
16.000 CAN HGC Used in CAN bus systems, some USB devices. 2.4 GHz ISM transceivers. Common general microcontroller frequency (i.e. Arduino Uno & Nano boards). Common as cheap ceramic resonators where frequency stability is less concern than cost. Pixel clock for Hercules Graphics Card.
16.200 HDTV Sampling clock for MUSE HDTV systems (). Rarely used as reference clock in some Bluetooth systems.
16.257 EGA Pixel clock generator in MGA and EGA video cards (640x350@60 Hz)[26]
16.367600
16.367667
16.368000
GPS Commonly used for down-conversion and sampling in GPS-receivers. Generates intermediate frequency signal at 4.092 MHz. 16.3676 or 16.367667 MHz are sometimes used instead of 16.368 MHz to avoid perfect lineup between sampling frequency and GPS spreading code. 16.368 MHz is a reference clock of some consumer GPS receivers.[23] 16.368 MHz is 16 times the 1.023 MHz C/A GPS signal chipping rate; multiplied by 96.25 to get the 1575.42 MHz L1 frequency and multiplied by 75 to get the 1227.60 MHz L2 frequency.
16.369 GPS Reference clock for some GPS systems. Available as TCXO.[27]
16.375 SDTV SDTV NTSC 16:9 pixel clock (864x480i@29.97), square pixels (854x480 would be ideal, 864x480 is close enough and a multiple of 16 and 32 for MPEG compression blocks)
16.384 256000 Yes Allows binary division to 1 kHz (214×1 kHz). Reference clock of some consumer GPS receivers.[23] Common audio clock, 256×64 kHz, 512×32 kHz (see also 8.192, 11.2896, 12.288, 18.432, 22.5792, 24.576 MHz). Commonly available as TCXO and OCXO.
16.5888 115200 UART clock allows integer division to common baud rates up to 115,200(x16x9) or 230,400(x8x9).
16.67 Core speed of some microcomputers (relatively common in Motorola 68000 family); bus clock; double to 33.33 MHz, quadruple to 66.67 MHz, multiply by 6 to 100 MHz; IOAPIC clock speed, half the PCI bus frequency
16.777216 Yes 224 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
16.800 1200 Common standard reference frequency for PLL circuits in radio transmitters and receivers, commonly used for frequency synthesis with adjustment in 2.5, 5 or 6.25 kHz steps (6720×5 kHz, 3360×5 kHz or 2688×5.25 kHz). UART clock allows integer division to common baud rates up to 1,200(x16x875) or 2,400(x8x875). Commonly available as TCXO, VCXO and VCTCXO. Used as reference clock in some Bluetooth systems. Reference clock for some GPS systems.[27]
16.9344 7200 audio Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz (384×44.1 kHz), 22.05 kHz, and 11.025 kHz. UART clock allows integer division to common baud rates up to 7,200(x16x147) or 14,400(x8x147). 6x 2.8224 MHz (DSD64 bitrate). Frequencies also used are 11.2896 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
17.2032 USB 76800 audio PLL conversion by 10/7 to 24.576 MHz and by 21/16 = 22.5792 MHz, which are 256× audio sampling frequencies 48 kHz and 44.1 kHz, respectively.[28] UART clock allows integer division to common baud rates up to 76,800(x16x14).
17.328 RDS The RDS signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
17.664 DSL 9600 UART clock allows integer division to common baud rates up to 9,600(x16x115) or 19,200(x8x115); DSL clock: 17.664 MHz (VDSL) ... 8×2.208 MHz (ADSL ADC sampling rate)
17.734475 PAL PAL B/G/H color subcarrier (4×4.433618 MHz); 4f(sc) sampling for PAL or 625/50, gives 1135x625 pixels incl. blankings, or 948x575 visible
18.000 SDTV/HDTV SDTV PAL/NTSC pixel clock for 16:9 (960x480i@29.97, 480x480p@59.94, 960x576i@25, 480x576p@50)
18.432 576000 audio Yes UART clock allows integer division to common baud rates up to 230,400(x16x5) or 576,000(x16x2). Audio clock allows integer division for 48 / 96 / 192 ksps.
18.75 ethernet Used to generate 75 MHz (x4) and 150 MHz (x8) clocks.
18.816 4800 audio/DAT Double the master channel bitrate clock. 9.408 MHz, of Digital Audio Tape systems; 392x48 kHz. The 9.408 MHz clock is divided by 72, 18, 12, and 6 to obtain the pilot, first sync frequency, second sync frequency, and erase frequency. Available as TCXO.
18.9375 PAL common CCIR/PAL CCTV camera clock frequency (total frame size 1212x625, incl. blankings, @ 25 Hz)
19.069929
19.069930
19.069920
19.069900
NTSC common EIA/NTSC CCTV camera clock frequency (total frame size 1212x525, incl. blankings, @29.97 Hz)
19.200 3G 9600 DVB UART clock allows integer division to common baud rates up to 9,600(x16x125) or 19,200(x8x125). Also used as a 3G reference clock, due to being a least common multiple of W-CDMA chip rate 3.84 MHz (5x) and 200 kHz channel raster (96x).[25] Commonly available as TCXO and OCXO. Also used in some DVB receiver chipsets. Reference clock of some consumer GPS receivers.[23] Used as reference clock in some Bluetooth systems. Common stratum 3 frequency.[15] Raspberry Pi 3 (and earlier) main clock crystal (54 MHz for Raspberry Pi 4), can be replaced with more accurate source (TCXO, OCXO, GPS-disciplined) if needed.
19.440 DS1/T1/E1, ethernet 1800 Used in DS1/T1/E1 systems as a packet clock. Used as reference clock in some Bluetooth systems. Commonly available as TCXO and OCXO. Gigabit Ethernet, used to generate 77.76 MHz (x4), 155.52 MHz (x8), 311.04 MHz (x16), 622.08 MHz (x32).
19.53125 Ethernet Gigabit Ethernet, used to generate 78.125 MHz (x4), 156.25 MHz (x8), 312.5 MHz (x16), 625 MHz (x32); multiplies to 10 GHz MAC-side bitrate, post-serdes; 156.25 MHz = 1/66 of 10.3125 GHz, 1/64 of 10.0 GHz
19.6608 CDMA 76800 Used in CDMA systems (4×4.9152); divided to 1.2288 MHz baseband frequency; UART clock allows integer division to common baud rates up to 38,400(x16x32) or 76,800(x16x16).
19.67 SDTV SDTV PAL 16:9 pixel clock (WSVGA 1024x576i@25), square pixels
19.680 CDMA 1200 Used in CDMA(IS-95)/CDMA2000 systems; divided to 1.2288 MHz baseband frequency; Used as reference clock in some Bluetooth systems. Commonly available as TCXO.
19.800 CDMA SDTV Used in some CDMA systems. Used as reference clock in some Bluetooth systems. SDTV NTSC pixel clock (528x480p@59.94)
20.000 Ethernet 500000 10 Mbit/s ethernet. Commonly available as TCXO and OCXO. Common stratum 3 Network Time Protocol frequency.[15] Common general microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost. Allows binary division to 10 MHz.
20.141601 Ethernet Gigabit Ethernet. Used to generate 80.566406 MHz (x4) or 161.132812 MHz (x8), 1/128 and 1/64 of 10.3125 GHz of copper gigabit ethernet wire bit rate
20.25 TV/MAC PAL/NTSC/SDTV Common sampling rate of luma+chroma video components in the Multiplexed Analogue Components standard. Pixel clock for SDTV PAL/NTSC (544x480p@59.94, 544x576p@50).
20.2752 115200 UART clock allows integer division to common baud rates up to 115,200(x16x11) or 230,400(x8x11).
20.480 256000 Yes Allows binary division to 10 kHz (211×10 kHz). Commonly available as TCXO and OCXO.
20.736 DECT 28800 Reference clock for DECT phones. Available as TCXO. Other frequencies are 10.368 and 13.824 MHz.
21.47727 NTSC NTSC M color subcarrier (6×3.579545 MHz). Common seed clock for many older computer systems, e.g. the NTSC-region NES, divided by 12 to CPU clock (1.789773 MHz); see 26.601712 MHz for PAL NES systems.[29]
22.1184 460800 UART clock allows integer division to common baud rates up to 460,800(x16x3) or 921600(x8x3). Twice the 11.0592 MHz frequency.
22.5792 28800 audio Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz (512×44.1 kHz), 22.05 kHz, and 11.025 kHz. DSD512 bitrate (8x 2.8224 MHz). Frequencies also used are 11.2896 MHz, 16.9344 MHz, 33.8688 MHz and 45.1584 MHz. UART clock allows integer division to common baud rates up to 28,800(x16x49) or 57,800(x8x49).
22.625 Used in Yaesu FT-817, FT-857, and FT-897 transceiver. Available as TCXO.
23.104 GPS Reference clock for some GPS systems. Available as TCXO.[27]
23.9616 115200 UART clock allows integer division to common baud rates up to 115,200(x16x13) or 230,400(x8x13).
24.000 USB Bluetooth headphones 500000 High-speed USB (24 MHz × 20 = 480Mbit/s); LCD monitor some MCU also Bluetooth headphones
24.54 SDTV SDTV NTSC 4:3 pixel clock (640x480p@59.94)
24.5535 GPS Reference clock for some GPS systems. Available as TCXO.[27] Almost 24 times the 1.023 MHz C/A code chipping rate.
24.576 FireWire 256000 audio Yes Digital audio systems - DAT, MiniDisc, AC'97, sound cards; 512×48 kHz (29×48 kHz); also used as bus reference clock in FireWire systems (with accuracy of 100 ppm). 3x 8.192 MHz. 49.1520 MHz (2x 24.576) also used. Also a crystal for systems handling CCIR-601 SDTV video (here see also 26.8 MHz).
24.704 DS1 16x 1.544, the bit clock for DS1 systems (±32 ppm, ANSI T1.102). Available as TCXO and OCXO.
25.000 Ethernet Fast Ethernet MII clock (100 Mbit/s/4-bit nibble) (with accuracy of 100 ppm); also multiplied by 5 to 125 MHz Also used on some laptop optical drives Gigabit Ethernet GMII GTXCLK clock, FDDI clock; used as input for 100 MHz PCI Express clock generators[8]
25.175 VGA Common Video Graphics Array pixel clock (i.e., 320/640x200/350/400@70 (320x200@70 Hz, 640x200@70, 320x350@70, 640x350@70, 640x400@70, VGA 640x480@60), all 31.778kHz horizontal)[30][31]
25.20 VGA VGA pixel clock (industry standard VGA 640x480@60, hsync 31.5 kHz)[31]
25.8048 230400 UART clock allows integer division to common baud rates up to 230,400(x16x7) or 460,800(x8x7)
26.000 GSM/UMTS DVB Commonly used as a reference clock for GSM and UMTS/3G handsets. (26 MHz is exactly 96 times the GSM bit rate). Commonly available as TCXO and OCXO.[25] Also used in some DVB receiver chipsets used on portable DVD players. Reference clock of some consumer GPS receivers.[23] Used in Long-CZ J8, Motorola F3 phones and some early Bluetooth USB dongles.
26.2144 Popular for 102.4 kS/s, 204.8 kS/s or similar sampling systems, when a power-of-two size FFT follows the sampling. In this case the FFT frequency bins end up to be at "nice" frequencies for humans. Also allows integer division to 25 Hz and multiples of 25 Hz (50 Hz, 100 Hz, 200 Hz); 26.2144 MHz = 100 x 218 = 25 x 220.
26.5625 Fibre Channel quadrupled to 106.250 MHz Fibre Channel clock
26.601712 PAL 6x the 4.43361875 color subcarrier frequency; clock crystal of the PAL region NES consoles, divided by 16 to CPU clock (1.662607 MHz), see 21.47727 MHz for NTSC region systems[29]
26.800 SDTV Common crystal in SDTV video handling systems (espec. NTSC, square-pixel, or dual-mode systems; CCIR601 systems also use 24.576 MHz)
26.8436 Digital signal generator Exact frequency is 2^28/10 Hz. Used to drive a DDS synthesizer with 28-bit accumulator; gives output from 0 to 2.68435 MHz in 0.1 Hz steps. Instek SFG-1000 series is one example.
26.975 RC 27 MHz band, band 0/1 (grey/brown), "split" frequency; radio-controlled models of cars, boats, aircraft[32]
26.995 RC 27 MHz band, band 1 (brown); radio-controlled models of cars, boats, aircraft
27.000 SDTV Master clock for PAL/NTSC DVD players, Digital TV receivers, some modems etc. (27 MHz is an exact multiple of the PAL and NTSC line frequencies). Master clock for MPEG-2 video systems (also uses multiples - 54 MHz, 81 MHz). Pixel clock for SDTV (720x480p@59.94, 720x576p@50), divides by 2 to 13.5 MHz clock (720x480i@59.94, 720x576i@25) and by 4 to 6.75 MHz, very common
27.025 RC 27 MHz band, band 1/2 (brown/red), "split" frequency; radio-controlled models of cars, boats, aircraft
27.045 RC 27 MHz band, band 2 (red); some radio-controlled models of cars, boats, aircraft
27.075 RC 27 MHz band, band 2/3 (red/orange), "split" frequency; radio-controlled models of cars, boats, aircraft
27.095 RC 27 MHz band, band 3 (orange); some radio-controlled models of cars, boats, aircraft
27.12 RFID Twice 13.56 MHz, common contactless smartcard frequency (ISO/IEC 14443)
27.125 RC 27 MHz band, band 3/4 (orange/yellow), "split" frequency; radio-controlled models of cars, boats, aircraft; common crystal in vintage walkie talkies
27.145 RC 27 MHz band, band 4 (yellow); some radio-controlled models of cars, boats, aircraft; gate and garage door remote controls; toy walkie talkies;[33] between channels 15 and 16 of the CB radio
27.175 RC 27 MHz band, band 4/5 (yellow/green), "split" frequency; radio-controlled models of cars, boats, aircraft
27.195 RC 27 MHz band, band 5 (green); radio-controlled models of cars, boats, aircraft
27.225 RC 27 MHz band, band 5/6 (green/blue), "split" frequency; radio-controlled models of cars, boats, aircraft
27.255 RC 27 MHz band, band 6 (blue); some radio-controlled models of cars, boats, aircraft
27.456 GPS Reference clock for some GPS systems. Available as TCXO.[27]
27.648 DECT 115200 Yes UART clock allows integer division to common baud rates up to 115,200(x16x15) or 576,000(x16x3). Twice the 13.824 MHz of DECT master clock.
28.3046 3270 Twelve times the coax bit rate of IBM_3270 networks.[34]
28.224 modems 7200 audio UART clock allows integer division to common baud rates up to 7,200(x16x245) or 14,400(x8x245); used in some faxes and modems; modem and fax rates (504×56000, 580×48000, 840×33600, 980×28800, 1960×14400, 2352×12000, etc.); also divides to common audio frequencies (147×192000, 588×48000, 640×44100, 1280×22050, 2560×11025)
28.322 VGA Common Video Graphics Array pixel clock (i.e., 720x350/400@70 Hz, 31.778kHz horizontal)[31]
28.37516
28.375
PAL Master clock for some PAL CCD cameras; 2 periods per pixel, 1816 periods per scan line, 567500 periods per frame. With frequency of 28.37516 video clock for all PAL Amiga computers.
28.636363 NTSC Master clock for some NTSC CCD cameras. Video clock for all NTSC Amiga computers. Twice the 14.31818 MHz frequency, shares its other uses, e.g. seed clock of PC ISA bus. Exactly 315/11 MHz. 8×3.598545 MHz of the NTSC colorburst. Used in some microcontroller based NTSC console emulators. See 35.46895 MHz for corresponding PAL systems.[35]
28.800 14400 DVB-T Used in some DVB-T USB dongle TV receivers, namely the RTL-SDR ones used for software-defined radio. UART clock allows integer division to common baud rates up to 14,400(x16x125) or 28,800(x8x125).
29.4912 921600 UART clock allows integer division to common baud rates up to 921,600(x16x2).
29.50 SDTV SDTV PAL 4:3 pixel clock (768x576p@50), square pixels
30.000 common CPU clock
30.240 VGA Early Macintosh video pixel clock (VGA 640x480@66 Hz)[31]
30.720 3G 38400 Yes A 3G reference clock; twice the 15.36 MHz, 8x the 3.84 MHz WCDMA chip rate. Reference clock in W-CDMA systems; can be multiplied by 16 to 491.52 MHz common for driving DACs in WCDMA wireless base stations or by 32 to 983.04 MHz for UMTS base stations or by 8 to 245.76 MHz, other common DAC sampling frequency.[36] UART clock; allows integer division to common baud rates (800×38400 baud or 800×32×1,200 baud). Available as VCXO, TCXO and OCXO.
31.3344 115200 UART clock; allows integer division to common baud rates. (272×115200 baud or 272×96×1,200 baud)
31.50 VGA VGA pixel clock (VESA modes 640x350@85, 640x400@85, VGA 640x480@72/75, all hsync 37.9 kHz)[31]
32.75 SDTV SDTV NTSC pixel clock (864x480p@59.94, close to FWVGA)
32.768 Yes Allows binary division to 1 kHz (215×1 kHz). Reference clock of some consumer GPS receivers. Commonly available as TCXO and OCXO.
33.1776 115200 UART clock; allows integer division to common baud rates. (288×115200 baud or 288×96×1,200 baud)
33.33 common CPU clock, PCI bus clock
33.554432 Yes 225 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
33.8688 115200 audio Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz (768×44.1 kHz), 22.05 kHz, and 11.025 kHz. 12x 2.8224 MHz (DSD64 bitrate). Also allows integer division to common UART baud rates up to 115200. Available as a TCXO. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz and 45.1584 MHz.
34.368 E3 38400 E3 data rate clock. UART clock; allows integer division to common baud rates. (895×38400 baud or 895×32×1200 baud)
34.950 RC 35 MHz band, channel 55; radio-controlled models of aircraft[37]
34.960 RC 35 MHz band, channel 56; radio-controlled models of aircraft; VGA pixel clock (GTF mode PAL 768x576@60, hsync 35.82 kHz)
34.970 RC 35 MHz band, channel 57; radio-controlled models of aircraft
34.980 RC 35 MHz band, channel 58; radio-controlled models of aircraft
34.990 RC 35 MHz band, channel 59; radio-controlled models of aircraft
35.000 RC 35 MHz band, channel 60; radio-controlled models of aircraft
35.010 RC 35 MHz band, channel 61; radio-controlled models of aircraft
35.020 RC 35 MHz band, channel 62; radio-controlled models of aircraft
35.0208 115200 UART clock; allows integer division to common baud rates. (304×115200 baud or 304×96×1,200 baud)
35.030 RC 35 MHz band, channel 63; radio-controlled models of aircraft
35.040 RC 35 MHz band, channel 64; radio-controlled models of aircraft
35.050 RC 35 MHz band, channel 65; radio-controlled models of aircraft
35.060 RC 35 MHz band, channel 66; radio-controlled models of aircraft
35.070 RC 35 MHz band, channel 67; radio-controlled models of aircraft
35.080 RC 35 MHz band, channel 68; radio-controlled models of aircraft
35.090 RC 35 MHz band, channel 69; radio-controlled models of aircraft
35.100 RC 35 MHz band, channel 70; radio-controlled models of aircraft
35.110 RC 35 MHz band, channel 71; radio-controlled models of aircraft
35.120 RC 35 MHz band, channel 72; radio-controlled models of aircraft
35.130 RC 35 MHz band, channel 73; radio-controlled models of aircraft
35.140 RC 35 MHz band, channel 74; radio-controlled models of aircraft
35.150 RC 35 MHz band, channel 75; radio-controlled models of aircraft
35.160 RC 35 MHz band, channel 76; radio-controlled models of aircraft
35.170 RC 35 MHz band, channel 77; radio-controlled models of aircraft
35.180 RC 35 MHz band, channel 78; radio-controlled models of aircraft
35.190 RC 35 MHz band, channel 79; radio-controlled models of aircraft
35.200 RC 35 MHz band, channel 80; radio-controlled models of aircraft
35.210 RC 35 MHz band, channel 81; radio-controlled models of aircraft
35.220 RC 35 MHz band, channel 82; radio-controlled models of aircraft
35.230 RC 35 MHz band, channel 83; radio-controlled models of aircraft
35.240 RC 35 MHz band, channel 84; radio-controlled models of aircraft
35.250 RC 35 MHz band, channel 85; radio-controlled models of aircraft
35.2512 115200 UART clock; allows integer division to common baud rates. (306×115200 baud or 306×96×1,200 baud)
35.260 RC 35 MHz band, channel 86; radio-controlled models of aircraft
35.270 RC 35 MHz band, channel 87; radio-controlled models of aircraft
35.280 RC 35 MHz band, channel 88; radio-controlled models of aircraft
35.290 RC 35 MHz band, channel 89; radio-controlled models of aircraft
35.300 RC 35 MHz band, channel 90; radio-controlled models of aircraft
35.328 DSL 38400 UART clock; allows integer division to common baud rates. (64×552000 baud, 256×138000 baud, 460×38400 baud or 460×32×1,200 baud); DSL clock: 2×17.664 MHz (VDSL) ... 16×2.208 MHz (ADSL ADC sampling rate)
35.46895
35.468
PAL 8×4.43361875 MHz of the PAL colorburst (color subcarrier). Used in some microcontroller based PAL console emulators.
See 28.6363 MHz for the corresponding NTSC systems.[35]
35.50 VGA VGA pixel clock (VESA mode 720x400@85, hsync 37.9 kHz)[31]
36.000 VGA/SDTV Video Graphics Array pixel clock (VESA modes VGA 640x480@85 with hsync 43.3 kHz, SVGA 800x600@56 with hsync 35.2 kHz.[31] Pixel clock for SDTV PAL/NTSC (FWVGA 960x480p@59.94, 960x576p@50).
36.864 460800 audio Yes UART clock allows integer division to common baud rates up to 460,800(x16x5). Audio clock allows integer division for 48 / 96 / 192 ksps.
38.400 3G 38400 DVB UART clock; allows integer division to common baud rates (500×38,400 baud or 500×32×1,200 baud). Also used as a 3G reference clock, due to being a second (2×19.2 MHz) least common multiple of W-CDMA chip rate 3.84 MHz (5x) and 200 kHz channel raster (96x).[25] Also used in some DVB receiver chipsets. Used as reference clock in some Bluetooth systems.
38.88 DS1/T1/E1 Used in DS1/T1/E1 systems as a packet clock (2×19.44 MHz). Commonly available as TCXO and OCXO.
39.000 GSM/UMTS 3x13 MHz. Commonly used as a reference clock for GSM and UMTS handsets. (39 MHz is exactly 144 times the GSM bit rate). Available as TCXO.
39.33 SDTV SDTV PAL 16:9 pixel clock (1024 WSWGA, 1024x576p@50), square pixels
40.000 common CPU clock, WiFi, OFDM. FPU oscillator for Commodore A3630 card and found in dual band miniPCIe WiFi cards. VGA pixel clock (VESA mode SVGA 800x600@60 with hsync 37.9 kHz). Allows binary division to 10 MHz.
40.320 115200 UART clock; allows integer division to common baud rates. (350×115200 baud or 350×96×1,200 baud)
40.655 RC 40 MHz band, channel 50; radio-controlled models of cars, boats[38]
40.665 RC 40 MHz band, channel 66; radio-controlled models of cars, boats
40.675 RC 40 MHz band, channel 51; radio-controlled models of cars, boats
40.680 common crystal in garage door remotes and other remote controls; multiply by 32/3 to 433.92 MHz
40.685 RC 40 MHz band, channel 52; radio-controlled models of cars, boats
40.695 RC 40 MHz band, channel 53; radio-controlled models of cars, boats
40.705 RC 40 MHz band, channel 70; radio-controlled models of cars, boats
40.715 RC 40 MHz band, channel 54; radio-controlled models of cars, boats
40.725 RC 40 MHz band, channel 55; radio-controlled models of cars, boats
40.735 RC 40 MHz band, channel 56; radio-controlled models of cars, boats
40.745 RC 40 MHz band, channel 74; radio-controlled models of cars, boats
40.755 RC 40 MHz band, channel 75; radio-controlled models of cars, boats
40.765 RC 40 MHz band, channel 57; radio-controlled models of cars, boats
40.775 RC 40 MHz band, channel 58; radio-controlled models of cars, boats
40.775 RC 40 MHz band, channel 77; radio-controlled models of cars, boats
40.785 RC 40 MHz band, channel 59; radio-controlled models of cars, boats
40.795 RC 40 MHz band, channel 79; radio-controlled models of cars, boats
40.805 RC 40 MHz band, channel 80; radio-controlled models of cars, boats
40.815 RC 40 MHz band, channel 81; radio-controlled models of cars, boats
40.825 RC 40 MHz band, channel 82; radio-controlled models of cars, boats
40.835 RC 40 MHz band, channel 83; radio-controlled models of cars, boats
40.875 RC 40 MHz band, channel 85; radio-controlled models of cars, boats
40.885 RC 40 MHz band, channel 86; radio-controlled models of cars, boats
40.915 RC 40 MHz band, channel 87; radio-controlled models of cars, boats
40.935 RC 40 MHz band, channel 93; radio-controlled models of cars, boats
40.945 RC 40 MHz band, channel 94; radio-controlled models of cars, boats
40.960 Allows binary division to 10 kHz (212×10 kHz)
40.975 RC 40 MHz band, channel 91; radio-controlled models of cars, boats
40.985 RC 40 MHz band, channel 92; radio-controlled models of cars, boats
40.985 RC 40 MHz band, channel 98; radio-controlled models of cars, boats
42.93 VGA VGA pixel clock (GTF mode PAL 768x576@72, hsync 43.27 kHz)[31]
43.16 VGA VGA pixel clock (GTF mode VGA 640x480@100, hsync 50.9 kHz)[31]
44.736 DS3 38400 DS3 data rate clock. UART clock; allows integer division to common baud rates. (1165×38400 baud or 1165×32×1200 baud)
44.90 VGA VGA pixel clock (industry standard XGA 1024x768i@43, hsync 35.5 kHz)[31]
45.1584 57600 audio Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz (1024×44.1 kHz), 22.05 kHz, and 11.025 kHz. 16x 2.8224 MHz (DSD rate). UART clock allows integer division to common baud rates up to 57,600(x16x49) or 115,200(x8x49). Available as a TCXO. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz and 33.8688 MHz.
45.51 VGA VGA pixel clock (GTF mode PAL 768x576@75, hsync 45.15 kHz)[31]
48.000 USB VGA/HDTV found in old VGA cards,[39] High-speed USB (48 MHz × 10 = 480Mbit/s). HDTV pixel clock (1280x1080i@25), variant compatible with CRT-based 31.250kHz horizontal deflection HDTVs.
49.1520 FireWire audio Digital audio systems - DAT, MiniDisc, AC'97, sound cards; 1024×48 kHz (210×48 kHz); also used as bus reference clock in FireWire systems (with accuracy of 100 ppm). Twice the more-standard frequency of 24.576 MHz. 6x 8.192 MHz. Available as TCXO.
49.408 DS1 32x 1.544, the bit clock for DS1 systems (±32 ppm, ANSI T1.102).
49.450549 HDTV HDTV NTSC pixel clock (1280x1080i@29.97, 1280x1080p@29.97); 49.5/1.001
49.500 HDTV HDTV ATSC pixel clock (1280x1080i@25/30, 1280x1080p@24/25/30). VGA pixel clock (VESA 800x600@75, hsync 46.9 kHz)
49.830
49.860
49.890
RC toy remote controls, walkie-talkies
50.000 Ethernet Fast Ethernet (2×25 MHz), VGA pixel clock (VESA mode 800x600@72, hsync 48.1 kHz)[31] PCI Express clock source, doubled to 100 MHz. Amigakit ZorRAM memory cards.
51.840 SONET 115200 VGA UART clock; allows integer division to common baud rates. (450×115200 baud or 450×96×1,200 baud); SONET STS-1 frequency (with accuracy of 20 =ppm);[8] VGA pixel clock (GTF mode 768x576@85, hsync 51.42 kHz). Can be generated from 6.48 MHz xtal.
52.416 modems 115200 UART clock; allows integer division to common baud rates. (455×115200 baud or 455×96×1,200 baud) and to modem and fax rates (936×56000, 1092×48000, 1560×33600, 1820×28800, 3640×14400, 4368×12000, etc.); also divides to some common audio frequencies (273×192000, 1092×48000)
53.125 Fibre Channel Fibre Channel clock
54.000 PAL/NTSC/HDTV Raspberry Pi 4 (BCM2711) main clock crystal (19.2 MHz for Raspberry Pi 3 and earlier). Clock for digital video systems (27 MHz is an exact multiple of the PAL and NTSC line frequencies). 2x the 27 MHz master clock for MPEG-2 video systems (see also 81 MHz). HDTV pixel clock (1440x1080i@25), variant compatible with CRT-based 31.250kHz horizontal deflection HDTVs.
55.6319 HDTV HDTV NTSC pixel clock (4:3 1440x1080i@29.97, 1440x1080p@23.976/29.97); 55.6875/1.001
55.6875 HDTV HDTV ATSC pixel clock (4:3 1440x1080i@25/30, 1440x1080p@24/25/30)
56.30 VGA VGA pixel clock (VESA mode SVGA 800x600@85, hsync 53.7 kHz)[31]
56.448 modems 115200 2×28.224 MHz; used in some faxes and modems; UART clock, allows integer division to common baud rates (490×115200, 1024×38400, 2048×19200, etc.) and to modem and fax rates (1008×56000, 1160×48000, 1680×33600, 1960×28800, 3920×14400, 4704×12000, etc.); also divides to common audio frequencies (294×192000, 1176×48000, 1280×44100, 2560×22050, 5120×11025)
61.440 WCDMA/3G Used in wireless base stations; 2x 30.72 MHz
62.57 VGA VGA pixel clock (GTF mode PAL 768x576@100, hsync 61.1 kHz)[31]
65.00 VGA VGA pixel clock (VESA mode XGA 1024x768@60, hsync 48.4 kHz)[31]
66.667 common CPU clock, PCI bus clock
67.108864 Yes 226 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
68.18 VGA VGA pixel clock (GTF mode SVGA 800x600@100, hsync 63.6 kHz)[31]
70.656 DSL 38400 (2x 35.328) UART clock; allows integer division to common baud rates. (128×552000 baud, 512×138000 baud, 920×38400 baud or 920×32×1,200 baud);DSL clock: 4×17.664 MHz (VDSL) ... 32×2.208 MHz (ADSL ADC sampling rate)
72.000 HDTV HDTV pixel clock (FHD/2K 1920x1080i@25), variant compatible with CRT-based 31.250kHz horizontal deflection HDTVs
74.1758242
74.176
HDTV HDTV NTSC pixel clock (HD/WXGA 1280x720p@23.976/29.97/59.94, 1920x1080i@29.97, 1920x1080p@23.976/29.97); 74.25/1.001; very common Multiply by 91/250 to get 27 MHz.
74.250 HDTV HDTV ATSC pixel clock (HD/WXGA 1280x720p@24/25/30/50/60, 1920x1080i@25/30, 1920x1080p@24/25/30); very common; also 1920x1080i@25, variant compatible with CRT-based 31.250kHz horizontal deflection HDTVs. Multiply by 4/11 to get 27 MHz.
75.0 VGA VGA pixel clock (VESA mode XGA 1024x768@70, hsync 56.5 kHz)[31]
77.760 SONET/SDH 115200 UART clock; allows integer division to common baud rates. (675×115200 baud or 675×96×1,200 baud). Commonly available as TCXO and OCXO. Multiplies to clock for communication for SONET/SDH/ATM, 1.5×51.840 MHz (SONET STS-1 frequency). Can be generated from 19.44 MHz xtal.
78.125 Ethernet Gigabit Ethernet, multiplies to 10 GHz MAC-side bitrate, post-serdes; 78.125 MHz = 1/132 of 10.3125 GHz, 1/128 of 10.0 GHz; often generated from 19.53125 MHz xtal
78.8 VGA VGA pixel clock (VESA mode XGA 1024x768@75, hsync 60.0 kHz)[31]
80.000 audio common CPU clock; used in some audio applications, available as TCXO. Allows binary division to 10 MHz.
80.566406 Ethernet Gigabit Ethernet. Multiplies (x128) to 10.3125 GHz, copper wire bit rate. Can be generated from 20.141601 xtal.
81.000 PAL/NTSC/SDTV Clock for digital video systems (27 MHz is an exact multiple of the PAL and NTSC line frequencies). 3x the 27 MHz master clock for MPEG-2 video systems (see also 81 MHz).
81.62 VGA VGA pixel clock (GTF mode XGA+ 1152x864@60, hsync 53.70 kHz)[31]
83.46 VGA VGA pixel clock (GTF mode WXGA 1280x800@60, hsync 49.68 kHz)[31]
85.86 VGA VGA pixel clock (GTF mode FWXGA 1368x768@60, hsync 47.7 kHz)[31]
88.75 VGA VGA pixel clock (WXGA+ 1440x900@60)
92.160 WCDMA/3G Used in wireless base stations; 3x 30.72 MHz
94.5 VGA VGA pixel clock (VESA mode XGA 1024x768@85, hsync 68.7 kHz)[31]
98.901099 HDTV HDTV NTSC pixel clock (1280x1080p@59.94); 2x 49.450549, 99/1.001
99.000 HDTV HDTV ATSC pixel clock (1280x1080p@50/60)
100.000 108 allows decade division to 1 Hz & 1 kHz. PCI Express clock.[40] Standard frequency, available as OCXO.
106.250 Fibre Channel Fibre Channel clock for 1.0625 gigabaud rate
106.47 VGA VGA pixel clock (GTF mode WXGA+ 1440x900@60, hsync 55.92 kHz)[31]
106.5 radio Used as an IF LO in microwave transceivers, e.g. on the amateur 10 GHz band. Multiplied by 96 to produce 10.224 GHz signal. Available as OCXO.
108.0 VGA VGA pixel clock (VESA modes XGA+ 1152x864@75 with hsync 675 kHz, SXGA-/UVGA 1280x960@60 with hsync 60.0 kHz, SXGA 1280x1024@60 with hsync 64 kHz)[31]
111.2638 HDTV HDTV NTSC pixel clock (4:3 1440x1080p@59.94); 111.375/1.001
111.375 HDTV HDTV ATSC pixel clock (4:3 1440x1080p@50/60); 2x 55.6875
113.31 VGA VGA pixel clock (GTF mode XGA 1024x768@100, hsync 81.4 kHz)[31]
116 radio Used as an IF LO in 144 MHz transverters. Available as TCXO. Sometimes used as GPS-disciplined OCXO.
119.65 VGA VGA pixel clock (GTF mode XGA+ 1152x864@85, hsync 77.1 kHz)[31]
122.61 VGA VGA pixel clock (GTF mode SXGA+ 1400x1050@60, hsync 65.22 kHz)[31]
122.880 WCDMA/3G Standard frequency, available as TCXO, VCXO. Used in wireless base stations; 4x 30.72 MHz
124.54 VGA VGA pixel clock (GTF mode SXGA-/UVGA 1280x960@72, hsync 72.07 kHz)[31]
125.000 Ethernet Gigabit Ethernet GMII GTXCLK clock, FDDI clock
129.86 VGA VGA pixel clock (GTF mode SXGA-/UVGA 1280x960@75, hsync 75.15 kHz)[31]
134.217728 Yes 227 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
135.0 VGA VGA pixel clock (VESA mode SXGA 1280x1024@75, hsync 80.0 kHz)[31]
143.47 VGA VGA pixel clock (GTF mode XGA+ 1152x864@100, hsync 91.5 kHz)[31]
147.14 VGA VGA pixel clock (GTF mode WSXGA+ 1680x1050@60, hsync 65.22 kHz)[31]
148.351648 HDTV SMPTE 424, HDTV NTSC pixel clock (FHD/2K 1920x1080p@59.94); 148.5/1.001. Multiply by 91/500 to get 27 MHz.
148.5 HDTV/HDMI SMPTE 424, HDTV ATSC pixel clock (FHD/2K 1920x1080p@50/60); 2x 74.25. VGA pixel clock (VESA mode 1280x960@85, hsync 85.9 kHz). Standard HDMI pixel clock (4k YUV 4:2:0@30). Multiply by 4/22 to get 27 MHz.
149.34 VGA VGA pixel clock (GTF mode SXGA+ 1400x1050@72, hsync 78.77 kHz)[31]
150.000 common reference oscillator, TCXO
153.600 WCDMA/3G Standard frequency. Used in wireless base stations, available as TCXO, VCXO. 5x 30.72 MHz. Popular frequency of SAW filters for intermediate frequency in microwave systems.
154.0 VGA VGA pixel clock (WUXGA 1920x1200@60)
155.520 SONET/SDH 3×51.840 MHz (SONET STS-1 frequency), SONET/SDH clock. Can be generated from 19.44 MHz xtal.
155.85 VGA VGA pixel clock (GTF mode SXGA+ 1400x1050@75, hsync 82.2 kHz)[31]
156.25 Ethernet 10 Gigabit Ethernet clock, 64-bit signal[41][42] Multiplies by 64 to 10.0 GHz (MAC-side serial bitrate) or by 66 to 10.3125 GHz (wire-side serial bitrate, after encoding). In video-over-IP systems, often with 148.5 and 148.351648 MHz.[43]
157.5 VGA VGA pixel clock (VESA mode SXGA 1280x1024@85, hsync 91.1 kHz)[31]
161.132812 Ethernet Gigabit Ethernet, 66-bit signal.[41][42] Multiplies (x64) to 10.3125 GHz, copper wire bit rate. Can be generated from 20.141601 xtal.
162.0 VGA VGA pixel clock (VESA mode UXGA 1600x1200@60, hsync 75.0 kHz)[31]
165.0 HDMI/DVI HDMI/DVI serial clock for 1080p@60 (TMDS encoding)
175.5 VGA VGA pixel clock (VESA mode UXGA 1600x1200@65, hsync 81.3 kHz)[31]
178.99 VGA VGA pixel clock (GTF mode SXGA-/UVGA 1280x960@100, hsync 101.7 kHz)[31]
179.26 VGA VGA pixel clock (GTF mode SXGA+ 1400x1050@85, hsync 93.76 kHz)[31]
184.320 WCDMA/3G Used in wireless base stations; 6x 30.72 MHz
187.50 Ethernet 10x 18.75 MHz; see also 75 MHz, 150 MHz
189.0 VGA VGA pixel clock (VESA mode UXGA 1600x1200@70, hsync 87.5 kHz)[31]
190.96 VGA VGA pixel clock (GTF mode SXGA 1280x1024@100, hsync 108.5 kHz)[31]
193.16 VGA VGA pixel clock (GTF mode WUXGA 1920x1200@60, hsync 74.52 kHz)[31]
196.608 E1 Allows division to 1 kHz (3 x 2^16 x 1 kHz). Bit clock for E1 systems. 48x 4.096 MHz, 96x 2.048 MHz.
202.5 VGA VGA pixel clock (VESA mode UXGA 1600x1200@75, hsync 93.8 kHz)[31]
204.8 VGA VGA pixel clock (VESA mode 1792x1344@60, hsync 83.6 kHz)[31]
214.39 VGA VGA pixel clock (GTF mode SXGA+ 1400x1050@100, hsync 111.2 kHz)[31]
218.3 VGA VGA pixel clock (VESA mode 1856x1392@60, hsync 86.3 kHz)[31]
229.5 VGA VGA pixel clock (VESA mode UXGA 1600x1200@85, hsync 106.3 kHz)[31]
234.0 VGA VGA pixel clock (VESA mode 1920x1440@60, hsync 90.0 kHz)[31]
234.59 VGA VGA pixel clock (QHD 2560x1440@60)
261.0 VGA VGA pixel clock (VESA mode 1792x1344@75, hsync 106.3 kHz)[31]
268.435456 Yes 228 allows binary division to 1 Hz & 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step
280.64 VGA VGA pixel clock (GTF mode UXGA 1600x1200@100, hsync 127.1 kHz)[31]
288.0 VGA VGA pixel clock (VESA mode 1856x1392@75, hsync 112.5 kHz)[31]
297.0 VGA/HDMI VGA pixel clock (VESA mode 1920x1440@75, hsync 112.5 kHz).[31] High-speed HDMI pixel clock (2x 148.5, 4k YUV 4:2:0@60, RGB@30).
311.04 SONET/SDH 6×51.840 MHz (SONET STS-1 frequency), SONET/SDH clock.
312.5 Ethernet Gigabit Ethernet, multiplies (x32) to 10 GHz MAC-side bitrate, or (x33) to 10.3125 GHz copper-wire serial bitrate; often generated from 19.53125 MHz xtal
312.787 VGA VGA pixel clock (21.5:9 3440x1440@60)
radio (ISM) SAW resonators for Chinese 315 MHz ISM band RF remote control fobs
322.265625 Ethernet Gigabit Ethernet, PHY, 66-bit signal. Multiplies (x32) to 10.3125 GHz, copper wire bit rate. Can be generated from 20.141601 xtal.
336.375 VGA VGA pixel clock (QHD 2560x1440@85)
radio (ISM) SAW resonators for 433.92 MHz ISM band RF remote control fobs
448.5 VGA VGA pixel clock (21.5:9 3440x1440@85)
483.120 VGA VGA pixel clock (QHD 2560x1440@120)
531.52 VGA VGA pixel clock (4K UHD 3440x1440@100)
533.250 VGA VGA pixel clock (4K UHD 3840x2160@60)
586.586 VGA VGA pixel clock (QHD 2560x1440@144)
622.08 SONET/SDH 12×51.840 MHz (SONET STS-1 frequency), SONET/SDH clock.
625.0 Ethernet Gigabit Ethernet, multiplies (x16) to 10 GHz MAC-side bitrate
644.160 VGA VGA pixel clock (21.5:9 3440x1440@120)
678.100 VGA VGA pixel clock (QHD 2560x1440@165)
1075.804 VGA VGA pixel clock (4K UHD 3840x2160@120)

See also[edit]

References[edit]

  1. ^ "Archived copy". Archived from the original on 2015-05-16. Retrieved 2015-04-26.CS1 maint: archived copy as title (link)
  2. ^ Bulova[circular reference]
  3. ^ https://sites.google.com/site/integritytechnologynet//resonator-mcu
  4. ^ Weitzman, Barry (March 16, 2008). "strange xtal frequencies". cctalk (Mailing list). Archived from the original on October 5, 2014.
  5. ^ Instrumentation Archived 2010-09-11 at the Wayback Machine. (PDF) . Retrieved on 2010-02-08.
  6. ^ D19 - Sensor Data. (PDF) . Retrieved on 2010-02-08.
  7. ^ https://www.maximintegrated.com/en/design/technical-documents/app-notes/3/3395.html
  8. ^ a b c "Using clock generation chips to replace crystals and oscillators". Archived from the original on 2011-07-13. Retrieved 2009-12-24.
  9. ^ https://www.maximintegrated.com/en/design/technical-documents/app-notes/3/3395.html
  10. ^ http://www.eham.net/ehamforum/smf/index.php?topic=66440.msg433549#msg433549
  11. ^ https://patents.google.com/patent/US10044456B1/en
  12. ^ https://datasheets.maximintegrated.com/en/ds/MAX7042.pdf
  13. ^ https://datasheets.maximintegrated.com/en/ds/MAX7042.pdf
  14. ^ http://pira.cz/pdf/UMA1014.pdf
  15. ^ a b c d QuickView - DS4026 10MHz to 51.84MHz TCXO. Maxim-ic.com. Retrieved on 2010-02-08.
  16. ^ CB Radio Frequency Synthesis explanation. Glodark.co.uk. Retrieved on 2010-02-08.
  17. ^ TSCM Handbook - Chapter 5. Dbugman.com. Retrieved on 2010-02-08.
  18. ^ a b 8051 Tutorial: Instruction Set, Timing, and Low-Level Information Archived 2010-01-03 at the Wayback Machine. 8052.com. Retrieved on 2010-02-08.
  19. ^ https://datasheets.maximintegrated.com/en/ds/MAX7042.pdf
  20. ^ https://datasheets.maximintegrated.com/en/ds/MAX7042.pdf
  21. ^ Blaupunkt digiceiver technology Archived 2009-07-08 at the Wayback Machine. Bluespot.co.uk. Retrieved on 2010-02-08.
  22. ^ a b CV-M50.indd Archived 2011-07-13 at the Wayback Machine Industrial Monochrome CCD Camera
  23. ^ a b c d e UPB1009K NEC’s low power GPS RF receiver bipolar analog + integrated circuit
  24. ^ https://datasheets.maximintegrated.com/en/ds/MAX7058EVKIT.pdf
  25. ^ a b c d Clock Interface Trends from GSM/EDGE to W-CDMA Archived 2010-02-15 at the Wayback Machine Gary Levy, Silicon Laboratories Inc.
  26. ^ http://neil.franklin.ch/Projects/SoftVGA/Design/Video_Signals
  27. ^ a b c d e SMD TCXO/VCTCXO for GPS Applications
  28. ^ "Achieving Bit-Perfect USB Audio". electronicdesign.com. Retrieved 2016-11-14.
  29. ^ a b https://wiki.nesdev.com/w/index.php/Clock_rate
  30. ^ VGA Signal Timing
  31. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az VGA timing information. Martin.hinner.info. Retrieved on 2010-02-08.
  32. ^ Jatech Limited. "Radio Control Systems, Receivers and Crystals 27Mhz & 40Mhz , 27Mhz Crystals | Antics Online". Rccarsandtrucks.co.uk. Archived from the original on 2008-12-12. Retrieved 2010-06-05. CS1 maint: discouraged parameter (link)
  33. ^ https://interferencetechnology.com/disney-walkie-talkies-pick-crude-trucker-conversation/
  34. ^ https://github.com/cwsimmons/raw3270
  35. ^ a b https://rossumblog.com/2015/09/15/arduinocade/
  36. ^ "de beste bron van informatie over open base station.Deze website is te koop!". Openbasestation.org. Archived from the original on 2008-12-01. Retrieved 2010-06-05. CS1 maint: discouraged parameter (link)
  37. ^ Jatech Limited. "Radio Control Systems, Receivers & Crystals for 35Mhz Radio, 35MHz Crystals | Antics Online". Rccarsandtrucks.co.uk. Archived from the original on 2012-09-09. Retrieved 2010-06-05. CS1 maint: discouraged parameter (link)
  38. ^ Jatech Limited. "Radio Control Systems, Receivers and Crystals 27Mhz & 40Mhz , 40Mhz Crystals | Antics Online". Rccarsandtrucks.co.uk. Archived from the original on 2009-08-13. Retrieved 2010-06-05. CS1 maint: discouraged parameter (link)
  39. ^ Low Power Multiband Beacon. Qsl.net. Retrieved on 2010-02-08.
  40. ^ Maxim Integrated Products First 100 MHz, HCSL-output crystal oscillator for PCI Express. Mobiledevdesign.com (2008-03-20). Retrieved on 2010-02-08.
  41. ^ a b SiTime Intros Oscillator for 10 Gigabit Ethernet Applications. Dark-fiber.tmcnet.com (2009-07-29). Retrieved on 2010-02-08.
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  43. ^ https://www.idt.com/eu/en/document/idt-clocks-smpte-and-xilinx-7-series-fpgas