A low power matched filter for DS-CDMA based on analog signal processing

Masahiro Sasaki, Takeyasu Sakai, Takashi Matsumoto

研究成果: Article

6 引用 (Scopus)


This paper proposes a low power consumption Analog Matched Filter (AMF) that utilizes capacitor multiply-and-accumulate operations. A high-speed, high-precision Analog-to-Digital (A/D) converter is unnecessary because the proposed circuit directly samples received analog signals. A code-shifting MF structure is used to prevent errors from accumulating. A 15-tap AMF circuit was fabricated using 0.35 μm CMOS technology. Power consumption for the 128-tap circuit is estimated to be 22.3 mW at 25 MHz and 3.3 V, and the area is estimated to be 0.33 mm2. The proposed circuit will thus be a useful LSI for mobile terminals.

ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
出版物ステータスPublished - 2003 4

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics

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