Frequency counters are depended on in R&D and in manufacturing for the fastest, most accurate frequency and time interval measurements.
How accurate are frequency counters?
As he points out, the accuracy of a frequency counter is only as good as its gate timing, and he ensures as accurate a seconds-worth of pulses as he can with a 1PPS signal derived from an inexpensive GPS receiver. The 328 makes its counting available to a host computer via a serial port, and can be easily read through a terminal.
Can a single 74 series chip count to over 100MHZ?
A good example comes via a project from [Scott, AJ4VD], a very simple frequency counter that uses a single 74 series chip at its business end, and counts to over 100MHz. The chip in question is a 74LV8154 dual 16-bit counter which he is using as a prescaler to deliver a rate more acceptable to an ATMega328 microcontroller that does the counting.
What is the frequency range of the 53131a counter?
The two-channel 53131A counter offers 10 digits per second of frequency/period resolution and a bandwidth of 225 MHz. Time interval resolution is specified at 500 ps.
What is the Time Stamp Counter (TSC)?
The Time Stamp Counter (TSC) is a 64-bit register present on all x86 processors since the Pentium. It counts the number of cycles since reset.
How does the AMD time stamp counter work?
AMD processors up to the K8 core always incremented the time-stamp counter every clock cycle. Thus, power management features were able to change the number of increments per second, and the values could get out of sync between different cores or processors in the same system.
What are time stamps and time interval measurements?
Time stamps and time-interval measurements are an integral part of computer and network performance measurements. These performance measurement operations include the computation of response time, throughput, and latency as well as profiling code execution.
