초록 ▼

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 a

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.

대표청구항 ▼

1. A digital circuit for multiplying a periodic input signal, comprising:an input signal node that receives the input signal; a period determining circuit coupled to the input signal node that determines a period of the input signal and that delivers the period in digital format; an adder coupled to

1. A digital circuit for multiplying a periodic input signal, comprising:an input signal node that receives the input signal; a period determining circuit coupled to the input signal node that determines a period of the input signal and that delivers the period in digital format; an adder coupled to the period determining circuit that adds successive periods received from the period determining circuit over a number of cycles and that delivers a resultant sum; a multiplier circuit coupled to the adder that receives the sum from the adder and that calculates a multiplication factor therefrom; and an output signal generating circuit coupled to the multiplier circuit that supplies an output signal which is a multiplied version of the input signal based on the multiplication factor.