Patent ID: 6624777
Filing Date: 2003-09-23
Classification: G01R,G06F

Abstract:
A fast A/D conversion signal processor comprising:a fast A/D converter which converts an input analog signal into digital data at an operation speed of 20 MHz or higher, said fast A/D converter comprising a high-stability crystal oscillator, an RE multiplying circuit which produces an RE clock signal having a frequency that is a multiple of the frequency of the output signal of said high-stability crystal oscillator, and an RF pulse transformer which produces differential RE clock signals to be used by said fast A/D converter from the RE clock; a digital signal process section which implements a digital signal process for the digital data; and a data memory device which stores the digital data released by said fast A/D converter in synchronism with a data ready signal provided by said fast A/D converter and reads out the stored digital data and delivers to said digital signal process section in synchronism with a clock signal for the digital signal process used by said digital signal process section.