With the transformation of telecommunications strategy,China Telecom infrastructure from traditional operators to modern integrated information service providers in transition,In this paper,to explore energy efficiency and improve resource utilization,To discuss how to use mixed-number allocation to achieve these objectives.

SMBus used in C8051F 064 mixed signal MCU;

Substrate noise coupling effect often occurs in the DSM mixed signal ICs,which seriously interferes the normal performance of the analog circuits.

The integrating of mixed signal circuit makes SoC use a special test method which is difficult from the test of the purely digital circuit IC.

Testability analysis of mixed-signal circuit;

Solution of the SOC mixed-signal test;

Research on Single-Point Grounding Technology in the Mixed-signal PCB Design;