Crystal oscillator frequencies
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, 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 | comm | UART | A/V | RTC | Notes and Primary uses |
| 0.032000 | Real-time clock, watches; allows binary division to 1 kHz signal. | ||||
| 0.032768 | 215 allows binary division to 1 Hz. Real-time clock, quartz watches and clocks; common low-speed for microcontrollers. Very common. Available as TCXO. | ||||
| 0.038000 | Used with FM stereo encoder chip BA1404 and similar. | ||||
| 0.065536 | 216 allows binary division to 1 Hz and 32.768 kHz. Real-time clock. | ||||
| 0.077500 | Real-time clock, quartz watches and clocks; also the DCF77 frequency | ||||
| 0.100000 | 105 allows decade division to 1 Hz and 1 kHz. Real-time clock, quartz watches and clocks, DMM dual slope ADCs | ||||
| 0.120000 | DMM dual slope ADCs | ||||
| 0.131072 | 217 allows binary division to 1 Hz and 32.768 kHz. Found in Fluke 17/19 DMM's | ||||
| 0.262144 | 218 allows binary division to 1 Hz and 32.768 kHz. Found in Bulova Precisionist high-frequency quartz watches. | ||||
| 0.383000 | Ceramic resonator, in e.g. Polaroid Sonia Transducer for distance | ||||
| 0.429000 | radio | Ceramic resonator used in some intermediate frequency filters. Common in oscillators of 36 kHz infrared remote controls | |||
| 0.455000 | radio | Ceramic resonator used in FM broadcasting intermediate frequency filters. Common in oscillators of 38 kHz infrared remote controls, 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 or 57,600. | ||
| 0.480000 | radio | Ceramic resonator used in some intermediate frequency filters and low-cost oscillators. Also used in DTMF generator oscillators. | |||
| 0.500000 | radio | Ceramic resonator used in some intermediate frequency filters and low-cost oscillators | |||
| 0.524288 | 219 allows binary division to 1 Hz and 32.768 kHz. | ||||
| 1.000 | 106 allows decade division to 1 Hz and 1 kHz. Reference frequency. Common standard frequency. Harmonics fall on integer MHz frequencies. | ||||
| 1.048576 | 220 allows binary division to 1 Hz and 32.768 kHz. Real-time clock. | ||||
| 1.008 | 1200 | UART clock allows integer division to common baud rates up to 1,200. Used in some 1200 baud modems. | |||
| 1.544 | DS1 | Bit clock for DS1 systems. | |||
| 1.8432 | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 230,400. 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. Bit clock for E1 systems. | |||
| 2.097152 | 221 allows binary division to 1 Hz and 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 or 76,800. | |||
| 2.500 | Ethernet | Ethernet clock for 10 Mbit/s | |||
| 2.560 | Allows binary division to 10 kHz | ||||
| 2.8224 | 2400 | audio | Used in CD-DA systems and CD-ROM drives; allows binary division to 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 or 14,400. Audio clock allows integer division for 48 / 96 / 192 ksps. | |||
| 3.072 | 128000 | audio | Allows binary division to 3 kHz ; can be used to generate 60 Hz signals. Used in audio systems, for 48 kHz, 96 kHz, 192 kHz, 384 kHz | ||
| 3.088 | DS1 | 2×1.544, the bit clock for DS1 systems. Available as TCXO and OCXO. | |||
| 3.2768 | Allows binary division to 100 Hz and to 50 Hz, used in e.g. wattmeters and DC-AC converters | ||||
| 3.560 | Amateur Radio | A common QRP frequency, also called 3560 kHz. Other less common crystals for the same band are 3.535, 3.550, 3.579 MHz. See also 7.025 MHz. | |||
| 3.575611 | PAL | PAL M color subcarrier | |||
| 3.579545 | NTSC | NTSC M color subcarrier; see colorburst. More specifically, 5 * 7 * 9 / 88 = 3.579 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. Used for a rainbow color test, produces color through the entire 360 degrees of phase shift. Unusual. | |||
| 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 or 460,800. Also used in W-CDMA systems. | ||
| 3.93216 | Allows binary division to 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 of less concern than cost. | ||||
| 4.032 | 7200 | UART clock allows integer division to common baud rates up to 7,200 or 14,400, used for some 1200, 2400, and 4800 baud modems. | |||
| 4.096 | ISDN | 256000 | Allows binary division to 1 kHz. Used in ISDN systems. | ||
| 4.190 | Ceramic resonator used in some intermediate frequency filters and low-cost oscillators, common | ||||
| 4.194304 | 222 allows binary division to 1 Hz and 32.768 kHz. Real-time clock. For DDS generators with 1 Hz step. Used in the original Game Boy. | ||||
| 4.320 | 1800 | Used for measuring 1pps deviations in 1/50th seconds per day. UART clock allows integer division to common baud rates up to 1,800 or 7,200. Audio clock allows integer division for 48 / 96 ksps. | |||
| 4.3218 | audio | Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. Frequencies also used are 8.6436 MHz and 17.2872 MHz. | |||
| 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 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. See also twice the frequency, 8.867238 MHz. | |||
| 4.608 | 57600 | audio | UART clock allows integer division to common baud rates up to 57,600 or 115,200. Audio clock allows integer division for 48 / 96 / 192 / 384 ksps. Allows integer division to 1.024 MHz, 1.024 kHz, 1 kHz, 60 Hz, 50 Hz. Common microcontroller clock frequency. Frequency of the Master Timing Unit OCXO of the Space Shuttle. | ||
| 4.7547 | radio | Oscillator for 315 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 64× | |||
| 4.897 | Reference clock for some 315 MHz transmitters and receivers, e.g. garage door openers. | ||||
| 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 or 76,800. | ||
| 5.000 | Common standard frequency. Commonly available as TCXO and OCXO. | ||||
| 5.034965 | NTSC | Integer multiple of the 59.94 Hz vertical refresh and the 15.734 kHz horizontal scan rates | |||
| 5.0688 | 57600 | UART clock allows integer division to common baud rates up to 14,400 or 57,600. | |||
| 5.120 | Allows binary division to 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 or 230,400. | |||
| 5.6448 | 14400 | audio | Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. DSD128 bitrate. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz. | ||
| 6.000 | USB | Common in low-speed USB devices such as computer keyboards. | |||
| 6.063 | Reference clock for some 390 MHz transmitters and receivers, e.g. garage door openers. | ||||
| 6.144 | 38400 | audio | Digital audio systems - DAT, MiniDisc, sound cards; 128×48 kHz. UART clock allows integer division to common baud rates up to 38,400 or 256,000. | ||
| 6.176 | DS1 | 4×1.544, the bit clock for DS1 systems. Available as TCXO and OCXO. | |||
| 6.400 | Binary multiple of 100 kHz, 50 kHz, 25 kHz, 12.5 kHz. Half of the common standard 12.8 MHz. | ||||
| 6.4512 | 115200 | 21×307.2 kHz; UART clock allows integer division to common baud rates up to 57,600 or 115,200. See also 3×, 19.3536 MHz. | |||
| 6.480 | SONET | 28800 | Used to generate 51.84 MHz, the SONET STS-1 frequency. | ||
| 6.4983 | Reference clock for some 418 MHz transmitters and receivers, e.g. TV remote extenders or wireless sensors. | ||||
| 6.5536 | Allows binary division to 100 Hz ; used also in red boxes | ||||
| 6.6128 | radio | Oscillator for 433.92 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 64× | |||
| 6.7458 | Reference clock for some 433.92 MHz ISM band transmitters and receivers, e.g. wireless sensors. Available as TCXO. | ||||
| 6.750 | SDTV | SDTV NTSC 4:3 pixel clock | |||
| 7.023 | Amateur Radio | CW Paradise in China. A common QRP frequency. Used with Pixie QRPP transceiver. Other less common frequencies are 7.030, 7.035, 7.040, 7.045, 7.048, 7.050, 7.055, 7.060, 7.070, 7.110, 7.114, 7.122 MHz. | |||
| 7.15909 | NTSC | NTSC M color subcarrier | |||
| 7.200 | DARC | 1800 | UART clock allows integer division to common baud rates up to 1,800 or 7,200. 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 or 921,600. | |||
| 7.600 | Radio | PLL clock for pilot tone in FM stereo. | |||
| 8.000 | CAN | Used in CAN bus systems and with many small microcontroller systems. Common general microcontroller frequency. 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 | Allows binary division to 1 kHz. Used in ISDN systems. Used in OKI Speech Processor. Common audio clock, 256×32 kHz. Typical TDM/PCM audio interface clock, 1/6 of 49.152 MHz. | |
| 8.388608 | 223 allows binary division to 1 Hz and 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step. Used in the Game Boy Color. | ||||
| 8.4672 | 1800 | audio | Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. UART clock allows integer division to common baud rates up to 1,800 or 7,200. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz. | ||
| 8.6436 | audio | Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. Frequencies also used are 4.3218 MHz and 17.2872 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 have been used also. | |||
| 8.86724 8.867238 | PAL | PAL B/G/H color subcarrier | |||
| 9.000 | SDTV | SDTV PAL/NTSC 16:9 pixel clock | |||
| 9.216 | 576000 | audio | UART clock allows integer division to common baud rates up to 115,200, 576,000. Audio clock allows integer division for 48 / 96 / 192 / 384 ksps. Allows integer division to 1.024 MHz, 1.024 kHz, 1 kHz, 60 Hz, 50 Hz. Master clock for some Japanese variants of DOCSIS. | ||
| 9.29063 | radio | Oscillator for 308 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 32× | |||
| 9.50939 | radio | Oscillator for 315 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 32× | |||
| 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 or 9,600. 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 synthesizers for mobile radio as the common channel spacings can be easily derived. | |||
| 9.8304 | CDMA | 38400 | Used in CDMA systems ; divided to 1.2288 MHz baseband frequency. UART clock allows integer division to common baud rates up to 38,400 or 76,800. | ||
| 9.84375 | radio | Used as clock in some 315 MHz remote fob and IoT transmitters ; 13.560 MHz used for 433.92 MHz | |||
| 9.900 | SDTV | SDTV NTSC pixel clock | |||
| 10.000 | 107 allows decade division to 1 Hz and 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. Common general microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost. | ||||
| 10.106 | Amateur Radio | A common QRP frequency. Other crystals are 10.116, 10.118, 10.120, 10.140 MHz. See also 7.025 MHz. | |||
| 10.125 | SDTV | SDTV PAL/NTSC pixel clock | |||
| 10.230 | GPS | Found in some GPS receivers. Equals the P 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 | Allows binary division to 10 kHz. Common as a clock in CB radio PLL frequency synthesizers to generate the 5 kHz or 10 kHz reference signal. 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 yielding 455 kHz signal, a common second IF for FM radio | |||
| 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 or 28,800. Can be divided by 64 to generate 162 kHz for ALS162 decoding. | ||
| 10.416667 | Ethernet | Multiplied by 12 to 125 MHz Gigabit Ethernet GMII GTXCLK clock, FDDI clock | |||
| 10.70 | FM radio | 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 | ||
| 11.0592 | 230400 | UART clock allows integer division to common baud rates up to 230,400 or 460,800; common clock for Intel 8051 microprocessors | |||
| 11.2896 | 14400 | audio | Used in CD-DA systems and CD-ROM drives; allows binary division to, 22.05 kHz, and 11.025 kHz. DSD256 bitrate. 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 and 28,800. | ||
| 11.454544 | teletext | Used in some teletext circuits; 2×5.727272 MHz | |||
| 11.520 | 28800 | UART clock allows integer division to common baud rates up to 28,800 or 57,600. | |||
| 12.000 | USB/CAN | Used in USB 1.0 and 2.0 systems 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; 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 4:3 640×480i@29.97 NTSC video. In practice the more commonly available 12.288 MHz frequency is close enough for most applications. | |||
| 12.288 | 76800 | audio | Digital audio systems - DAT, MiniDisc, sound cards; 256×48 kHz. UART clock allows integer division to common baud rates up to 76,800 or 256,000 | ||
| 12.352 | DS1 | 8x1.544, the bit clock for DS1 systems. Available as TCXO and OCXO. | |||
| 12.40625 | teletext | Used in some teletext circuits; 2×6.203125 MHz | |||
| 12.72813 | radio | Oscillator for 418 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 32x | |||
| 12.800 | Common standard frequency, common reference clock; binary multiple of 100 kHz, 50 kHz, 25 kHz, 12.5 kHz. Commonly available as TCXO and OCXO. Common stratum 3 frequency. | ||||
| 12.9024 | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 230,400 | |||
| 12.960 | 1800 | UART clock allows integer division to common baud rates up to 1,800 or 7,200 | |||
| 13.000 | GSM/UMTS | Commonly used as a reference clock for GSM and UMTS handsets.. Commonly available as TCXO and OCXO. | |||
| 13.22563 | radio | Oscillator for 433.92 MHz FSK/ASK superheterodyne receivers with 10.7 MHz intermediate frequency, multiplied 32x | |||
| 13.500 | SDTV | Master clock for PAL/NTSC DVD players, Digital TV receivers, etc. ; pixel clock for 4:3 SDTV PAL/NTSC. CCIR-601 PAL samplerate, CCIR-601 NTSC samplerate | |||
| 13.5168 | 76800 | UART clock allows integer division to common baud rates up to 76,800 | |||
| 13.560 | RFID | Common contactless smartcard frequency. Also used as clock in some 433.92 MHz remote fob transmitters ; 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 or 576,000. Other frequencies are 10.368 and 20.736 MHz. | ||
| 13.875 | teletext | Used in some teletext circuits; 2×6.9375 MHz | |||
| 14.048 | Amateur Radio | A common amateur radio frequency. Other crystals are 14.050, 14.060, 14.070 MHz. See also 7.025 MHz. | |||
| 14.112 | 1800 | audio | Digital audio systems - 294×48 kHz, 320×44.1 kHz. UART clock allows integer division to common baud rates up to 1,800 or 7,2000. 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. Pixel clock of some PAL CCD cameras. Used in PAL version in some early Apple computers, e.g. Apple II Europlus. | ||
| 14.318182 | NTSC | NTSC M color subcarrier. 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 sampling for NTSC or 525/60, SMPTE 244M standard. | |||
| 14.350 | NTSC | Pixel clock of some NTSC CCD cameras. | |||
| 14.400 | PDC | 7200 | UART clock allows integer division to common baud rates up to 7,200 or 14,400. Also a reference clock for PDC clock. Reference clock of some consumer GPS receivers. | ||
| 14.7456 | 921600 | UART clock allows integer division to common baud rates up to 921,600; common clock for small microcontrollers | |||
| 14.750 | SDTV | Clock rate for exactly square pixels in SDTV PAL 4:3 interleaved 768×576i@25 video. 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. Frequency used in photoacoustic imaging. Sometimes available as OCXO. Used in dual-frequency 315/390 MHz RF key fobs. | ||||
| 15.360 | 3G | 38400 | UART clock allows integer division to common baud rates up to 38,400 or 128,000. Also used as a 3G reference clock. 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. Common as cheap ceramic resonators where frequency stability is less concern than cost. Pixel clock for Hercules Graphics Card. Also used for ZigBee, Bluetooth and BLE, WiFi. | ||
| 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 MDA and EGA video cards | |||
| 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. 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. | |||
| 16.375 | SDTV | SDTV NTSC 16:9 pixel clock, square pixels | |||
| 16.384 | 256000 | Allows binary division to 1 kHz. Reference clock of some consumer GPS receivers. Common audio clock, 256×64 kHz, 512×32 kHz. Commonly available as TCXO and OCXO. | |||
| 16.5888 | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 230,400. | |||
| 16.67 | Core speed of some microcomputers ; 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 | 224 allows binary division to 1 Hz and 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. UART clock allows integer division to common baud rates up to 1,200 or 2,400. Commonly available as TCXO, VCXO and VCTCXO. Used as reference clock in some Bluetooth systems. Reference clock for some GPS systems. | |||
| 16.9344 | 7200 | audio | Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. UART clock allows integer division to common baud rates up to 7,200 or 14,400. 6x2.8224 MHz. 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. UART clock allows integer division to common baud rates up to 76,800. | |
| 17.2872 | audio | Used in CD-DA systems and CD-ROM drives; allows integer division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. Frequencies also used are 4.3218 MHz and 8.6436 MHz. | |||
| 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 have been used also. | |||
| 17.664 | DSL | 9600 | UART clock allows integer division to common baud rates up to 9,600 or 19,200; DSL clock: 17.664 MHz ... 8×2.208 MHz | ||
| 17.734475 | PAL | PAL B/G/H color subcarrier ; 4f sampling for PAL or 625/50, gives 1135×625 pixels incl. blankings, or 948×575 visible | |||
| 18.000 | SDTV/HDTV | SDTV PAL/NTSC pixel clock for 16:9 | |||
| 18.096 | Amateur Radio | A WARC band, QRP. Another crystal is 18.086 MHz. See also 7.025 MHz, 10.106 MHz. | |||
| 18.432 | 576000 | audio | UART clock allows integer division to common baud rates up to 115,200, 230,400, 576,000. Audio clock allows integer division for 48 / 96 / 192 / 384 ksps. Allows integer division to 1.024 MHz, 1.024 kHz, 1 kHz, 60 Hz, 50 Hz. | ||
| 18.75 | Ethernet | Used to generate 75 MHz and 150 MHz clocks. | |||
| 18.816 | 4800 | audio/DAT | Double the master channel bitrate clock. 9.408 MHz, of Digital Audio Tape systems; 392×48 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 | |||
| 19.069929 19.069930 19.069920 19.069900 | NTSC | Common EIA/NTSC CCTV camera clock frequency | |||
| 19.200 | 3G | 9600 | DVB | UART clock allows integer division to common baud rates up to 9,600 or 19,200. Also used as a 3G reference clock, due to being a least common multiple of W-CDMA chip rate 3.84 MHz and 200 kHz channel raster. Commonly available as TCXO and OCXO. Also used in some DVB receiver chipsets. Reference clock of some consumer GPS receivers. Used as reference clock in some Bluetooth systems. Common stratum 3 frequency. Raspberry Pi 3 main clock crystal, can be replaced with more accurate source if needed. Used in some DECT, GPS, BLE systems. | |
| 19.3536 19.354 | 115200 | 3×6.4512 MHz; 63×307.2 kHz; UART clock allows integer division to common baud rates up to 57,600 or 115,200. | |||
| 19.440 | SONET/SDH DS1/T1/E1 | 1800 | Used in SONET/SDH systems as a base reference clock that is multiplied to generate 77.76 MHz, 155.52 MHz for OC-3, 311.04 MHz, and 622.08 MHz for OC-12. Commonly available as TCXO and OCXO to meet stringent SONET/SDH accuracy requirements. Used in DS1/T1/E1 systems as a packet clock. Used as reference clock in some Bluetooth systems. | ||
| 19.53125 | Ethernet | Gigabit Ethernet, used to generate 78.125 MHz, 156.25 MHz, 312.5 MHz, 625 MHz ; 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 ; divided to 1.2288 MHz baseband frequency; UART clock allows integer division to common baud rates up to 38,400 or 76,800. | ||
| 19.67 | SDTV | SDTV PAL 16:9 pixel clock, square pixels | |||
| 19.680 | CDMA | 1200 | Used in CDMA/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 | ||
| 20.000 | Ethernet | 500000 | 10 Mbit/s Ethernet. Commonly available as TCXO and OCXO. Common stratum 3 Network Time Protocol frequency. Common general microcontroller frequency. Common as cheap ceramic resonators where frequency stability is less concern than cost. Allows binary division to 10 MHz. Used in some WiFi and Bluetooth systems. | ||
| 20.141601 | Ethernet | Gigabit Ethernet. Used to generate 80.566406 MHz or 161.132812 MHz, 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. | ||
| 20.2752 | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 230,400. | |||
| 20.480 | 256000 | Allows binary division to 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. | ||
| 21.050 | Amateur Radio | A common QRP frequency, SKCC. Other crystal is 21.060 MHz. See also 7.025 MHz. | |||
| 21.47727 | NTSC | NTSC M color subcarrier. Common seed clock for many older computer systems, e.g. the NTSC-region NES, divided by 12 to CPU clock ; see 26.601712 MHz for PAL NES systems. | |||
| 22.1184 | 460800 | UART clock allows integer division to common baud rates up to 460,800 or 921600. 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, 22.05 kHz, and 11.025 kHz. DSD512 bitrate. 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 or 57,800. | ||
| 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. | |||
| 23.9616 | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 230,400. | |||
| 24.000 | USB Bluetooth headphones | 500000 | High-speed USB ; LCD monitor some MCU also Bluetooth headphones. Used in some WiFi, Bluetooth and BLE systems. | ||
| 24.54 | SDTV | SDTV NTSC 4:3 pixel clock | |||
| 24.5535 | GPS | Reference clock for some GPS systems. Available as TCXO. Almost 24 times the 1.023 MHz C/A code chipping rate. | |||
| 24.576 | FireWire | 256000 | audio | Digital audio systems - DAT, MiniDisc, AC'97, sound cards; 512×48 kHz ; also used as bus reference clock in FireWire systems. 3x8.192 MHz. 49.1520 MHz also used. Also a crystal for systems handling CCIR-601 SDTV video. | |
| 24.704 | DS1 | 16x1.544, the bit clock for DS1 systems. Available as TCXO and OCXO. | |||
| 24.906 | Amateur Radio | A common QRP frequency. See also 7.025 MHz. | |||
| 25.000 | Ethernet | Fast Ethernet MII clock ; 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 Used in some ISM radio systems. | |||
| 25.175 | VGA | Common Video Graphics Array pixel clock | |||
| 25.8048 | 230400 | UART clock allows integer division to common baud rates up to 230,400 or 460,800 | |||
| 26.000 | GSM/UMTS | DVB | Commonly used as a reference clock for GSM and UMTS/3G handsets.. Commonly available as TCXO and OCXO. Also used in some DVB receiver chipsets used on portable DVD players. Reference clock of some consumer GPS receivers. Used in Long-CZ J8, Motorola F3 phones and some early Bluetooth USB dongles. Common with ESP8266 and ESP32 chips. Used in some WiFi, WLan, Bluetooth, BLE, NFC and GSM systems. | ||
| 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 ; 26.2144 MHz = 100×218 = 25×220. | ||||
| 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, see 21.47727 MHz for NTSC region systems | |||
| 26.800 | SDTV | Common crystal in SDTV video handling systems | |||
| 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, "split" frequency; radio-controlled models of cars, boats, aircraft | |||
| 26.995 | RC | 27 MHz band, band 1 ; radio-controlled models of cars, boats, aircraft | |||
| 27.000 | SDTV | Master clock for PAL/NTSC DVD players, Digital TV receivers, some modems etc.. Master clock for MPEG-2 video systems. Pixel clock for SDTV, divides by 2 to 13.5 MHz clock and by 4 to 6.75 MHz, very common | |||
| 27.025 | RC | 27 MHz band, band 1/2, "split" frequency; radio-controlled models of cars, boats, aircraft | |||
| 27.045 | RC | 27 MHz band, band 2 ; some radio-controlled models of cars, boats, aircraft | |||
| 27.075 | RC | 27 MHz band, band 2/3, "split" frequency; radio-controlled models of cars, boats, aircraft | |||
| 27.095 | RC | 27 MHz band, band 3 ; some radio-controlled models of cars, boats, aircraft | |||
| 27.12 | RFID | Twice 13.56 MHz, common contactless smartcard frequency. Used in RFID/NFC systems. | |||
| 27.125 | RC | 27 MHz band, band 3/4, "split" frequency; radio-controlled models of cars, boats, aircraft; common crystal in vintage walkie talkies | |||
| 27.145 | RC | 27 MHz band, band 4 ; some radio-controlled models of cars, boats, aircraft; gate and garage door remote controls; toy walkie talkies; between channels 15 and 16 of the CB radio | |||
| 27.175 | RC | 27 MHz band, band 4/5, "split" frequency; radio-controlled models of cars, boats, aircraft | |||
| 27.195 | RC | 27 MHz band, band 5 ; radio-controlled models of cars, boats, aircraft | |||
| 27.225 | RC | 27 MHz band, band 5/6, "split" frequency; radio-controlled models of cars, boats, aircraft | |||
| 27.255 | RC | 27 MHz band, band 6 ; some radio-controlled models of cars, boats, aircraft | |||
| 27.456 | GPS | Reference clock for some GPS systems. Available as TCXO. | |||
| 27.648 | DECT | 115200 | UART clock allows integer division to common baud rates up to 115,200 or 576,000. Twice the 13.824 MHz of DECT master clock. | ||
| 28.060 | Amateur Radio | A common QRP frequency. See also 7.025 MHz. | |||
| 28.3046 | 3270 | Twelve times the coax bit rate of IBM 3270 networks. | |||
| 28.224 | modems | 7200 | audio | UART clock allows integer division to common baud rates up to 7,200 or 14,400; used in some faxes and modems; modem and fax rates ; also divides to common audio frequencies | |
| 28.322 | VGA | Common Video Graphics Array pixel clock | |||
| 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. | |||
| 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 or 28,800. | ||
| 29.4912 | 921600 | UART clock allows integer division to common baud rates up to 921,600. | |||
| 29.50 | SDTV | SDTV PAL 4:3 pixel clock, square pixels | |||
| 30.000 | Common CPU clock. Used in some ISM wireless systems. | ||||
| 30.240 | VGA | Early Macintosh video pixel clock | |||
| 30.720 | 3G | 38400 | 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. UART clock; allows integer division to common baud rates. Available as VCXO, TCXO and OCXO. | ||
| 31.3344 | 115200 | UART clock; allows integer division to common baud rates. CPU frequency or multiple of it in older Apple Macintosh computers. | |||
| 31.50 | VGA | VGA pixel clock | |||
| 32.000 | LoRa | common crystal for LoRa RF chips by Semtech, available as TCXO; also used for Zigbee, 6LowPan, RF4CE, Bluetooth and BLE | |||
| 32.75 | SDTV | SDTV NTSC pixel clock | |||
| 32.768 | Allows binary division to 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. | |||
| 33.33 | Common CPU clock, PCI bus clock | ||||
| 33.554432 | 225 allows binary division to 1 Hz and 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, 22.05 kHz, and 11.025 kHz. 12x2.8224 MHz. 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. | ||
| 34.950 | RC | 35 MHz band, channel 55; radio-controlled models of aircraft | |||
| 34.960 | RC | 35 MHz band, channel 56; radio-controlled models of aircraft; VGA pixel clock | |||
| 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. | |||
| 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. | |||
| 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 | 19200 | UART clock; allows integer division to common baud rates up to 19200 baud; DSL clock: 2×17.664 MHz ... 16×2.208 MHz. Used in some microcontroller based PAL console emulators. See 28.6363 MHz for the corresponding NTSC systems. | ||
| 35.50 | VGA | VGA pixel clock | |||
| 36.000 | VGA/SDTV | Video Graphics Array pixel clock. | |||
| 36.864 | 576000 | audio | UART clock allows integer division to common baud rates up to 115,200, 230,400, 460,800, 576,000. Audio clock allows integer division for 48 / 96 / 192 / 384 ksps. Allows integer division to 1.024 MHz, 32.768 kHz, 1.024 kHz, 1 kHz, 60 Hz, 50 Hz. | ||
| 37.400 | Used in some WiFi and Bluetooth systems. | ||||
| 38.400 | 3G | 38400 | DVB | UART clock; allows integer division to common baud rates. Also used as a 3G reference clock, due to being a second least common multiple of W-CDMA chip rate 3.84 MHz and 200 kHz channel raster. Also used in some DVB receiver chipsets. Used as reference clock in some Bluetooth systems, DECT phones, WiFi. | |
| 38.88 | DS1/T1/E1 | Used in DS1/T1/E1 systems as a packet clock. Commonly available as TCXO and OCXO. | |||
| 39.000 | GSM/UMTS | 3×13 MHz. Commonly used as a reference clock for GSM and UMTS handsets.. Available as TCXO. | |||
| 39.33 | SDTV | SDTV PAL 16:9 pixel clock, 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. Allows binary division to 10 MHz. Used with ESP8266 and ESP32 chips. Used in some WiFi, Bluetooth and BLE, RFID/NFC, SimpleLink systems. | ||||
| 40.320 | 115200 | UART clock; allows integer division to common baud rates. | |||
| 40.655 | RC | 40 MHz band, channel 50; radio-controlled models of cars, boats | |||
| 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 | ||||
| 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 | |||
| 43.16 | VGA | VGA pixel clock | |||
| 44.736 | DS3 | 38400 | DS3 data rate clock. UART clock; allows integer division to common baud rates. | ||
| 44.90 | VGA | VGA pixel clock | |||
| 45.1584 | 57600 | audio | Used in CD-DA systems and CD-ROM drives; allows binary division to 44.1 kHz, 22.05 kHz, and 11.025 kHz. 16x2.8224 MHz. UART clock allows integer division to common baud rates up to 57,600 or 115,200. 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 | |||
| 48.000 | USB | VGA/HDTV | found in old VGA cards, High-speed USB. HDTV pixel clock, variant compatible with CRT-based 31.250 kHz horizontal deflection HDTVs. Used in some WiFi and Bluetooth systems. | ||
| 49.1520 | FireWire | audio | Digital audio systems - DAT, MiniDisc, AC'97, sound cards; 1024×48 kHz ; also used as bus reference clock in FireWire systems. Twice the more-standard frequency of 24.576 MHz. 6x8.192 MHz. Available as TCXO. | ||
| 49.408 | DS1 | 32x1.544, the bit clock for DS1 systems. | |||
| 49.450549 | HDTV | HDTV NTSC pixel clock ; 49.5/1.001 | |||
| 49.500 | HDTV | HDTV ATSC pixel clock. VGA pixel clock | |||
| 49.830 49.860 49.890 | RC | toy remote controls, walkie-talkies | |||
| 50.000 | Ethernet | Fast Ethernet, VGA pixel clock PCI Express clock source, doubled to 100 MHz. Amigakit ZorRAM memory cards. | |||
| 50.09 | Amateur Radio | A common QRP frequency. Other crystal can be 50.4 MHz. 3rd overtone. See also 7.025 MHz. | |||
| 51.840 | SONET/SDH | 115200 | VGA | SONET/SDH STS-1/OC-1 frequency ; UART clock; allows integer division to common baud rates. ; VGA pixel clock. Can be generated from 6.48 MHz xtal. | |
| 52.000 | Used in some WiFi, WLAN and GSM systems. | ||||
| 52.416 | modems | 115200 | UART clock; allows integer division to common baud rates. and to modem and fax rates ; also divides to some common audio frequencies | ||
| 53.125 | Fibre Channel | Fibre Channel clock | |||
| 54.000 | PAL/NTSC/HDTV | Raspberry Pi 4 main clock crystal. Clock for digital video systems. 2x the 27 MHz master clock for MPEG-2 video systems. HDTV pixel clock, variant compatible with CRT-based 31.250 kHz horizontal deflection HDTVs. | |||
| 55.6319 | HDTV | HDTV NTSC pixel clock ; 55.6875/1.001 | |||
| 55.6875 | HDTV | HDTV ATSC pixel clock | |||
| 56.30 | VGA | VGA pixel clock | |||
| 56.448 | modems | 115200 | 2×28.224 MHz; used in some faxes and modems; UART clock, allows integer division to common baud rates and to modem and fax rates ; also divides to common audio frequencies | ||
| 61.440 | WCDMA/3G | Used in wireless base stations; 2x30.72 MHz | |||
| 62.57 | VGA | VGA pixel clock | |||
| 65.00 | VGA | VGA pixel clock | |||
| 66.667 | common CPU clock, PCI bus clock | ||||
| 67.108864 | 226 allows binary division to 1 Hz and 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step | ||||
| 68.18 | VGA | VGA pixel clock | |||
| 70.656 | DSL | 38400 | UART clock; allows integer division to common baud rates. ;DSL clock: 4×17.664 MHz ... 32×2.208 MHz | ||
| 72.000 | HDTV | HDTV pixel clock, variant compatible with CRT-based 31.250 kHz horizontal deflection HDTVs | |||
| 74.1758242 74.176 | HDTV | HDTV NTSC pixel clock ; 74.25/1.001; very common Multiply by 91/250 to get 27 MHz. | |||
| 74.250 | HDTV | HDTV ATSC pixel clock ; very common; also 1920×1080i@25, variant compatible with CRT-based 31.250 kHz horizontal deflection HDTVs. Multiply by 4/11 to get 27 MHz. | |||
| 75.0 | VGA | VGA pixel clock | |||
| 77.760 | SONET/SDH | 115200 | Used in SONET/SDH systems as a base reference clock that is multiplied to generate 622.08 MHz for OC-12 and 2488.32 MHz for OC-48, and it is a common clock rate for internal parallel data. Commonly available as TCXO and OCXO to meet stringent SONET/SDH accuracy requirements, but it can also be generated from 19.44 MHz reference multiplied by 4. UART clock; allows integer division to common baud rates.. | ||
| 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 | |||
| 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 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. 3x the 27 MHz master clock for MPEG-2 video systems. | |||
| 81.62 | VGA | VGA pixel clock | |||
| 83.46 | VGA | VGA pixel clock | |||
| 85.86 | VGA | VGA pixel clock | |||
| 88.75 | VGA | VGA pixel clock | |||
| 92.160 | WCDMA/3G | Used in wireless base stations; 3x30.72 MHz | |||
| 94.5 | VGA | VGA pixel clock | |||
| 98.901099 | HDTV | HDTV NTSC pixel clock ; 2x49.450549, 99/1.001 | |||
| 99.000 | HDTV | HDTV ATSC pixel clock | |||
| 100.000 | 108 allows decade division to 1 Hz and 1 kHz. PCI Express clock. Standard frequency, available as OCXO. | ||||
| 106.250 | Fibre Channel | Fibre Channel clock for 1.0625 gigabaud rate | |||
| 106.47 | VGA | VGA pixel clock | |||
| 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 | |||
| 111.2638 | HDTV | HDTV NTSC pixel clock ; 111.375/1.001 | |||
| 111.375 | HDTV | HDTV ATSC pixel clock ; 2x55.6875 | |||
| 113.31 | VGA | VGA pixel clock | |||
| 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 | |||
| 122.61 | VGA | VGA pixel clock | |||
| 122.880 | WCDMA/3G | Standard frequency, available as TCXO, VCXO. Used in wireless base stations; 4x30.72 MHz | |||
| 124.54 | VGA | VGA pixel clock | |||
| 125.000 | Ethernet | Gigabit Ethernet GMII GTXCLK clock, FDDI clock | |||
| 129.86 | VGA | VGA pixel clock | |||
| 134.217728 | 227 allows binary division to 1 Hz and 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step | ||||
| 135.0 | VGA | VGA pixel clock | |||
| 143.47 | VGA | VGA pixel clock | |||
| 147.14 | VGA | VGA pixel clock | |||
| 148.351648 | HDTV | SMPTE 424, HDTV NTSC pixel clock ; 148.5/1.001. Multiply by 91/500 to get 27 MHz. | |||
| 148.5 | HDTV/HDMI | SMPTE 424, HDTV ATSC pixel clock ; 2x74.25. VGA pixel clock. Standard HDMI pixel clock. Multiply by 4/22 to get 27 MHz. | |||
| 149.34 | VGA | VGA pixel clock | |||
| 150.000 | common reference oscillator, TCXO | ||||
| 153.600 | WCDMA/3G | Standard frequency. Used in wireless base stations, available as TCXO, VCXO. 5x30.72 MHz. Popular frequency of SAW filters for intermediate frequency in microwave systems. | |||
| 154.0 | VGA | VGA pixel clock | |||
| 155.520 | SONET/SDH | 3×51.840 MHz for OC-3 SONET/SDH clock. Can be generated from 19.44 MHz xtal. | |||
| 155.85 | VGA | VGA pixel clock | |||
| 156.25 | Ethernet | 10 Gigabit Ethernet clock, 64-bit signal Multiplies by 64 to 10.0 GHz or by 66 to 10.3125 GHz. In video-over-IP systems, often with 148.5 and 148.351648 MHz. | |||
| 157.5 | VGA | VGA pixel clock | |||
| 161.132812 | Ethernet | Gigabit Ethernet, 66-bit signal. Multiplies to 10.3125 GHz, copper wire bit rate. Can be generated from 20.141601 xtal. | |||
| 162.0 | VGA | VGA pixel clock | |||
| 165.0 | HDMI/DVI | HDMI/DVI serial clock for 1080p@60 | |||
| 175.5 | VGA | VGA pixel clock | |||
| 178.99 | VGA | VGA pixel clock | |||
| 179.26 | VGA | VGA pixel clock | |||
| 184.320 | WCDMA/3G | Used in wireless base stations; 6x30.72 MHz | |||
| 187.50 | Ethernet | 10x18.75 MHz; see also 75 MHz, 150 MHz | |||
| 189.0 | VGA | VGA pixel clock | |||
| 190.96 | VGA | VGA pixel clock | |||
| 193.16 | VGA | VGA pixel clock | |||
| 196.608 | E1 | Allows division to 1 kHz. Bit clock for E1 systems. 48x4.096 MHz, 96x2.048 MHz. | |||
| 202.5 | VGA | VGA pixel clock | |||
| 204.8 | VGA | VGA pixel clock | |||
| 214.39 | VGA | VGA pixel clock | |||
| 218.3 | VGA | VGA pixel clock | |||
| 229.5 | VGA | VGA pixel clock | |||
| 234.0 | VGA | VGA pixel clock | |||
| 234.59 | VGA | VGA pixel clock | |||
| 261.0 | VGA | VGA pixel clock | |||
| 268.435456 | 228 allows binary division to 1 Hz and 32.768 kHz. Real-time clock; also for DDS generators with 1 Hz step | ||||
| 280.64 | VGA | VGA pixel clock | |||
| 288.0 | VGA | VGA pixel clock | |||
| 297.0 | VGA/HDMI | VGA pixel clock. High-speed HDMI pixel clock. | |||
| 311.04 | SONET/SDH | 6×51.840 MHz SONET/SDH clock. | |||
| 312.5 | Ethernet | Gigabit Ethernet, multiplies to 10 GHz MAC-side bitrate, or to 10.3125 GHz copper-wire serial bitrate; often generated from 19.53125 MHz xtal | |||
| 312.787 | VGA | VGA pixel clock | |||
| radio | SAW resonators for Chinese 315 MHz ISM band RF remote control fobs | ||||
| 322.265625 | Ethernet | Gigabit Ethernet, PHY, 66-bit signal. Multiplies to 10.3125 GHz, copper wire bit rate. Can be generated from 20.141601 xtal. | |||
| 336.375 | VGA | VGA pixel clock | |||
| radio | SAW resonators for 433.92 MHz ISM band RF remote control fobs | ||||
| 448.5 | VGA | VGA pixel clock | |||
| 483.120 | VGA | VGA pixel clock | |||
| 531.52 | VGA | VGA pixel clock | |||
| 533.250 | VGA | VGA pixel clock | |||
| 586.586 | VGA | VGA pixel clock | |||
| 622.08 | SONET/SDH | 12×51.840 MHz for OC-12 SONET/SDH clock. | |||
| 625.0 | Ethernet | Gigabit Ethernet, multiplies to 10 GHz MAC-side bitrate | |||
| 644.160 | VGA | VGA pixel clock | |||
| 678.100 | VGA | VGA pixel clock | |||
| 1075.804 | VGA | VGA pixel clock |