What is a clock divider and what are its uses in digital circuits?

what is the use of dividing clock

There are many reasons to divide a clock from the fact that one of the devices in your design such as a micro-controller needs an 8Mhz clock to the FPGA part in your design needs a 120Mhz clock as well.. Another reason is memory and memory refresh and logic which require different phases of the same clock to fulfill refresh and access requirements.Some designs require different phases to meet tight timing requirements to transmit data from one board to another board and the clock is divided or synced to meet the timing of another board in your design.

A clock divider is usually a device takes an input clock that is used to produce an output clock. The output clock frequency is function of the input clock frequency where the output clock frequency is the result of the input frequency divided by an integer.

Or Possibly phase shifted......depending if PLLs are used for this operation.......

As you have probably gathered by now; clocks form the main timing basis for almost all digital circuitry.

For this reason many of the words used to describe the timing of electronics circuits are related to clocks; such as 'phase', 'edges', 'quadrature' etc.

For this reason, any response to this question involves words which may make the answer more complicated than the question.

In more simple terms a clock is just like its name suggests; a 'tick' which signals the sequence of events just like in a real mechanical clock.

Extending this analogy - in the same way that a second hand 'ticks' or moves every second, then the minute hand moves or 'ticks' every minute or 60 seconds. One could say the minute hand runs on the second 'clock divided by 60'. The it is clear how different clocks or 'ticks' can signal (or synchronize) different events.

This is a simple example of the 'clock divider' principle - in a digital circuit the clocks are electrical signals, but their purpose of synchronizing different 'events' is just the same.

A clock divider is a circuit that takes an input signal of a frequency fin and generates an output signal of a frequency fout, where fout = fin / n and ‘‘n’’ is an integer. Frequency dividers are used for both analog and digital applications. Analog frequency dividers are used only at very high frequencies. Digital dividers can work up to tens of GHz.

A frequency divider is a circuit that takes an input signal of a frequency fin and generates an output signal of a frequency fout, where fout = fin / n and ‘‘n’’ is an integer. Frequency dividers are used for both analog and digital applications. Analog frequency dividers are used only at very high frequencies. Digital dividers can work up to tens of GHz.
Frequency dividers can be implemented for both analog and digital applications. They can be used for improving the performance of electronic countermeasures equipment, communications systems and laboratory instruments. Frequency dividers and multipliers are key components of modern RF and microwave systems. Their main application is in frequency synthesis.

frequency divider An electronic device that is capable of dividing the frequency of a given digital input pulse train by a fixed integer value, n. It often consists of an n-stage counter, the output frequency at the nth stage of counting being an nth submultiple of the input frequency.

Clock divider is an electronic device that is capable of dividing the frequency of a given digital input pulse train by a fixed integer value, n. It often consists of an n-stage counter, the output frequency at the nth stage of counting being an nth submultiple of the input frequency.