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It is measured in hertz (pulses per second). Clock rate or clock speed in computing typically refers to the frequency at which the clock generator of a processor can generate pulses used to synchronize the operations of its components. [1] It is used as an indicator of the processor's speed. Clock rate is measured in the SI unit of frequency ...
In revision 1.2, released in 2013, a new "Reduced Blanking Timing Version 2" mode was added which further reduces the horizontal blanking interval from 160 to 80 pixels, increases pixel clock precision from ±0.25 MHz to ±0.001 MHz, and adds the option for a 1000/1001 modifier for ATSC/NTSC video-optimized timing modes (e.g. 59.94 Hz instead ...
2 16 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 10 5 allows decade division to 1 Hz and 1 kHz. Real-time clock, quartz watches and clocks, DMM dual slope ADCs (suppresses 50 Hz noise) 0.120000 DMM dual slope ADCs (suppresses 60 Hz noise ...
Atomic clocks usually have an external PPS output, although internally they may operate at 9,192,631,770 Hz. [3] PPS signals have an accuracy ranging from 12 picoseconds to a few microseconds per second, or 2.0 nanoseconds to a few milliseconds per day based on the resolution and accuracy of the device generating the signal.
100 Hz (10 ms resolution) 1 kHz (1 ms resolution) 10 kHz (100 μs resolution) 100 kHz (10 μs resolution) 1 MHz (1 μs resolution) Coded expressions Binary-coded decimal (BCD) day of year, hours, minutes, and (for some formats) seconds and fractions are always included. Optional components are: Year number (00–99; century is not coded)
A measurement of the variation in period (periodic jitter) and absolute timing (random jitter) between measured clock timing versus an ideal clock. Less jitter is generally better for sampling systems. Sample rate A specification of the rate at which measurements are taken of the analogue signal. This is measured in samples per second, or hertz ...
Standard-quality 32 768 Hz resonators of this type are warranted to have a long-term accuracy of about six parts per million (0.0006%) at 31 °C (87.8 °F): that is, a typical quartz clock or wristwatch will gain or lose 15 seconds per 30 days (within a normal temperature range of 5 to 35 °C or 41 to 95 °F) or less than a half second clock ...
In order to provide evenly spaced measurements, the reference clock will be divided down to form the measurement rate, triggering the time-interval counter (ARM input). This rate can be 1 Hz (using the 1 PPS output of a reference clock), but other rates like 10 Hz and 100 Hz can also be used. The speed of which the time-interval counter can ...