A 3.0 V 40 Mb/s hard disk drive read channel IC

Author

De Veirman, Geert A. ; Ueda, Shunsaku ; Cheng, Jackie ; Tam, Stephen ; Fukahori, Kiyoshi ; Kurisu, Masafumi ; Shinozaki, Eiji

Author_Institution

Silicon Syst. Inc., Tustin, CA, USA

Volume

30

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

788

Lastpage

799

Abstract

This paper presents a high performance low power BiCMOS mixed signal ASIC that integrates all the electronics required by a hard disk drive (HDD) read channel. The IC includes the automatic gain control (AGC) circuit, a programmable continuous-time filter, two pulse qualifiers, the servo demodulator, the time base generator, the data synchronizer, and the encoder/decoder. Constant density recording with data rates between 14 and 40 Mb/s in 1,7 Run Length Limited (RLL) format and embedded 4-burst servo are supported. All the chip´s specifications are guaranteed for supply voltages ranging from 3.0-5.5 V. Programming and testing are achieved via a 3-terminal bi-directional serial interface and internal registers. Nominal power dissipation at 3.0 V supply and 40 Mb/s data rate is 360 mW. Pulse pairing and write data jitter, two key performance parameters, each measured less than 300 ps

Keywords

BiCMOS integrated circuits; automatic gain control; continuous time filters; demodulators; hard discs; mixed analogue-digital integrated circuits; programmable filters; runlength codes; servomechanisms; time bases; 1,7 run length limited format; 14 to 40 Mbit/s; 3.0 to 5.5 V; 360 mW; BiCMOS mixed signal ASIC; automatic gain control; bi-directional serial interface; constant density recording; data synchronizer; embedded 4-burst servo; encoder/decoder; hard disk drive; power dissipation; programmable continuous-time filter; pulse pairing; pulse qualifiers; read channel; servo demodulator; time base generator; write data jitter; Application specific integrated circuits; BiCMOS integrated circuits; Demodulation; Filters; Gain control; Hard disks; Pulse circuits; Pulse generation; Pulse measurements; Servomechanisms;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.391118

Filename

391118