50 ns video signal processor

Shin ichi Nakagawa*, Hideyuki Terane, Tetsuya Matsumura, Hiroshi Segawa, Masahiko Yoshimoto, Hirofumi Shinohara, Shu ichi Kato, Atsushi Maeda, Yasutaka Horiba, Hideo Ohira, Yoshi aki Katoh, Mamoru Iwatsuki, Kin ya Tabuchi

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


A 50-ns CMOS DSP (digital signal processor) with enhanced parallel architecture suited for video signal processing is reported. It has significant performance advantages, especially for video codecs in ISDN (integrated services digital network) video communication, is based on a 24-b fixed-point architecture, and operates in a five-stage pipeline (instruction-fetch, instruction-decode, source-data-transfer, execution, and destination-data-transfer). It contains 538k transistors and typically consumes 1.4 W at an instruction cycle rate of 50 ns. The DSP was fabricated in a 1.0-μm double-metal CMOS technology. Computation speed for the several coding procedures is approximately 3 to 10 times faster than that of traditional DSPs. A 64-kb/s video codec can be implemented with four or five DSPs for full common-source-interface-formats (CSIF) mode and one or two DSPs for 1/4 CSIF mode.

Original languageEnglish
Pages (from-to)168-169, 328
JournalDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Publication statusPublished - 1989 Dec 1
Externally publishedYes
EventIEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 1989) - New York, NY, USA
Duration: 1989 Feb 151989 Feb 17

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


Dive into the research topics of '50 ns video signal processor'. Together they form a unique fingerprint.

Cite this