A 130 Mb/s PRML read/write channel with digital-servo detection

Author

Tuttle, G.T. ; Vishakhadatta, G.D. ; Goldenberg, M. ; Kuai, D. ; Mehr, L. ; Singh, Ashutosh ; Trujillo, R.P. ; Welland, D.R. ; Gomez, Raquel ; Aram, F. ; Hein, J.P. ; Reed, Doug ; Mitchem, J. ; Bliss, W.G. ; Armstrong, A.J. ; Behrens, R.T. ; Dudley, T.O.

Author_Institution

Crystal Semicond. Corp., Austin, TX, USA

fYear

1996

fDate

10-10 Feb. 1996

Firstpage

64

Lastpage

65

Abstract

The detection of servo information in hard disk drive read channels has traditionally been implemented with analog circuits and converted with an off-chip analog-to-digital converter (ADC). The benefits of digital servo detection include system cost savings through the elimination of the off-chip ADC, reduced development time, repeatability, testability, and ease of future integration. The full digital PRML chip is described.

Keywords

hard discs; maximum likelihood detection; partial response channels; servomechanisms; 130 Mbit/s; PRML; cost savings; development time; digital-servo detection; hard disk drive; partial response maximum likelihood; read/write channel; repeatability; servo information detection; testability; Clocks; Digital filters; Error analysis; Finite impulse response filter; Frequency synthesizers; Oscillators; Registers; Sampling methods; Servomechanisms; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International

Conference_Location

San Francisco, CA, USA

ISSN

0193-6530

Print_ISBN

0-7803-3136-2

Type

conf

DOI

10.1109/ISSCC.1996.488515

Filename

488515