Synchronous Clock Extraction of PCM Serial Data Stream

A method which is based on frequency dividing counter with the assist of phase adjustment and mis-adjustment procedure module,is adopted to develop the synchronous clock from a serial PCM data stream for its receiver in voice dispatching systems.The method′s implementation and timing simulation result by using CPLD and Verilog HDL are given,which indicate that the method can effectively produce the synchronous clock from a given serial data stream.