Frequency Divider

1. A frequency divider, also called a clock divider or scaler or prescaler, is a circuit that takes an input signal of a frequency, fin, and generates an output signal of a frequency
                      fout=fin/n
                      where n is an integer.

2. Frequency divider is an important building block in today’s RFIC and microwave circuits because it is an integral part of the phase-locked loop (PLL) circuit.