Title :
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
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;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.814847
