Prescaler circuit and buffer circuit

摘要

A buffer for amplifying an input signal (fv) and generating an output signal, the buffer characterized by:
a first amplification circuit for receiving the input signal and generating the output signal from the input signal, with the first amplification circuit having a variable drive capacity; and a feedback circuit, connected to the first amplification circuit, for feeding back the output signal of the first amplification circuit to the first amplification circuit, with the feedback circuit having a variable resistance.