A digital servo architecture with 8.8 bit resolution of position error signal for disk drives

Author

Kimura, Hiroshi ; Nishiya, Takushi ; Nara, Takashi ; Komatsu, Tatsuya

Author_Institution

Syst. Dev. Lab., Hitachi Ltd., Yokohama, Japan

Volume

3

fYear

1997

fDate

3-8 Nov 1997

Firstpage

1268

Abstract

A new digital servo signal processing architecture with 8.8 bit resolution of position error signal for disk drives is presented. It achieves an 8.8 bit resolution of the position error signal by use of a 6 bit ADC (analog to digital converter) for the data channel. This new architecture uses only a full wave rectifier and a divider. The burst signal is rectified in the analog domain before being sampled by the clock, which has a higher frequency than the servo frequency, in the ADC

Keywords

analogue-digital conversion; floppy discs; hard discs; servomechanisms; signal resolution; signal sampling; 6 bit; ADC; analog to digital converter; burst signal; clock; data channel; digital servo signal processing architecture; disk drives; divider; full wave rectifier; position error signal; resolution; sampled signal; servo frequency; Analog-digital conversion; Circuits; Clocks; Digital signal processing; Disk drives; Frequency; Rectifiers; Sampling methods; Servomechanisms; Signal processing; Signal resolution; Signal sampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.644339

Filename

644339