A low rower 8-tap digital FIR filter for PRML read channels

Hoon Jae Ki, Cheon Su Lee, Woo Hyun Paik, In Chul Hwang, Kwan Yeob Chae, Jang Sik Yoo, Soo Won Kim

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper presents a low power 8-tap digital Fourier infrared (FIR) filter for partial response signalling with maximum likelihood (PRML) disk-drive read channels. Enhancements on power consumption and speed are achieved by adopting the row compression scheme with a proposed conditional carry selection method. The 8-tap digital FIR filter is fabricated by 0.8 μm CMOS technology and occupies by 3.9mm × 1.5mm. The experimental results show that the FIR filter operates up to 180MHz and dissipates 1.4mW Mhz-1 with 3.7V power supply. It is proved that 20% power reduction is readily attainable with the proposed scheme.

Original languageEnglish
Pages (from-to)445-455
Number of pages11
JournalInternational Journal of Electronics
Issue number4
Publication statusPublished - 2000 Apr

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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