DELAY DETECTION DEVICE AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To prevent a circuit scale from being expanded even if the number of input terminals is increased in a delay detection device provided with a shift register successively delaying input digital data by a clock input and a data operating part operating an output of the shift register and the input digital data. SOLUTION: A data multiplexing part 102 performs time division multiplexing of the data of input digital data terminals 101 consisting of N systems, the multipelxed data are inputted to a shift register 103 having N-stage registers needed to delay the data, and the data stored in the register are successively shifted to the next register to be delayed by inputting a clock to the register 103 from a clock input terminal 104. Only one data operating part 105 can perform delay detection in such a manner that the part 105 operates output data from the part 102 and the output data from the register 103.