A median peak detecting analog signal processor for hard disk drive servo

A median peak detecting analog signal processor for hard disk drive servo

An analog signal processor for hard disk drive servo is described. It performs servo demodulation by means of median peak defection which provides immunity against additive as well as multiplicative noise from the medium, unlike conventional methods. A novel circuit configuration has been employed t...

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Veröffentlicht in:IEEE journal of solid-state circuits 1995-04, Vol.30 (4), p.461-470
Hauptverfasser: Nagaraj, K., Lewis, S.H., Walden, R.W., Offord, G.E., Shariatdoust, R.S., Sabnis, J.A., Peruzzi, R.O., Barner, J.R., Plany, J., Mento, R.P., Rakshani, V.A., Hull, R.W.
Format: Artikel
Sprache:eng
Schlagworte:
Additive noise
Applied sciences
Circuits
Demodulation
Electronics
Exact sciences and technology
Hard disks
Integrated circuits
Integrated circuits by function (including memories and processors)
Magnetic heads
Magnetic noise
Magnetic separation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Servomechanisms
Signal detection
Signal processing
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Beschreibung
Zusammenfassung:An analog signal processor for hard disk drive servo is described. It performs servo demodulation by means of median peak defection which provides immunity against additive as well as multiplicative noise from the medium, unlike conventional methods. A novel circuit configuration has been employed to implement the median peak detector in an area and power efficient manner. The entire servo processor that includes the demodulator and 10 b A/D and D/A converters has been integrated into a single CMOS integrated circuit.< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.375967