A continuous-time area detector servo demodulator for hard disk drives

Author

Garrido, Nuno de Figueiredo ; Franca, José E.

Author_Institution

Dept. of Electr. & Comput. Eng., Integrated Circuits & Syst. Group, Lisbon, Portugal

Volume

2

fYear

1998

fDate

1998

Firstpage

127

Abstract

This paper presents a continuous-time servo demodulator for magnetic disk drives implemented as a programmable current-mode operated Gm-C filter. This first order filter consists of pseudo-differential balanced transconductors and of a MOSFET bank array to implement a variable integrating capacitor. Simulation results are presented

Keywords

CMOS integrated circuits; continuous time systems; current-mode circuits; demodulators; disc drives; hard discs; low-power electronics; mixed analogue-digital integrated circuits; programmable filters; servomechanisms; 0.5 micron; 3 V; 3 mW; MOSFET bank array; area detector servo demodulator; continuous-time demodulator; current-mode Gm-C filter; first order filter; hard disk drives; magnetic disk drives; programmable Gm-C filter; pseudo-differential balanced transconductors; variable integrating capacitor; Capacitors; Demodulation; Detectors; Disk drives; Filters; Hard disks; MOSFET circuits; Magnetic separation; Servomechanisms; Transconductors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1998 IEEE International Conference on

Conference_Location

Lisboa

Print_ISBN

0-7803-5008-1

Type

conf

DOI

10.1109/ICECS.1998.814847

Filename

814847