Low Power ASIC Design for IS-95 based CDMA Searcher

This paper describes the low power design technique of IS-95 based CDMA(Code Division Multiple Access) Searcher. Searcher is composed of dispread, synchronous accumulator, energy computing, comparator, and asynchronous accumulator. The proposed technique consist of rescheduling with strength reduction, precomputation, and low power synchronous accumulator. The system is designed using VHDL, then simulated and synthesized using SYNOPSYSTM. Also, the dissipated power is measured using Design Power in SYNOPSYSTM. We achieved maximum 67% power saving and 41% area saving compared with conventional design.