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A continuous-time area detector servo demodulator for hard disk drives
1998 IEEE International Conference on Electronics, Circuits and Systems. Surfing the Waves of Science and Technology (Cat. No.98EX196)
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.
doi:10.1109/icecs.1998.814847
fatcat:x3lk73dowvhh5lpoqhxwxryyvm