Digital signal multiplier

摘要

An electronic circuit that multiplies an input signal using primarily digital components so that the resulting circuit can be fabricated consistently by different foundries. The circuit determines a period for the input signal and converts the period to a digital number (e.g., a binary number). An adder is used to determine an average period over a predetermined number of cycles. By determining the average period, voltage fluctuations are cancelled. A multiplier allows for a variable multiplication of the averaged period. A clock generating circuit uses the results obtained by the multiplier to generate a multiplied output signal. Additionally, the input signal is routinely multiplexed with the generated output signal to ensure phase matching.