New Method of Design of Serial PCM Decoded by Circuits

摘要

Test platform accomplished the mission of decoding high-speed difference PCM signal received, and recording data by frame. Also it achieved serial-parallel data conversion. The key is how to implement hardware synchronization, concludes clock-synchronization, code-synchronization and frame-synchronization. The paper introduce the circuit on conversing difference signal to TTL , and introduce in detail how to gained bit-clock signal . The circuit has applied in one test platform of some type of devices successfully. It has the merit of stabilization and anti-jamming.