Title :
A dual-channel analog servo-signal processor for 13 Gb tape drives
Author :
Narayan, Sriram ; Klein, Hans W.
Author_Institution :
Hacienda Design Lab., IMP Inc., Pleasanton, CA, USA
Abstract :
This paper describes the first dual-channel analog signal processor for servo control in a 13 Gbyte QIC tape drive systems. The highly programmable low-power, low-cost CMOS IC provides 12 bit accuracy employing sophisticated real-time peak-detection, error correction, and calibration. It provides both analog and digital servo information, servo motor control and built-in analog test capability. Innovative circuit implementations presented here include a high-bandwidth VGA and a peak-detector with clock recovery which removes the need for on-chip PLLs. Behavioral modeling of the entire chip was used to ensure system integrity
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; calibration; magnetic tape equipment; peak detectors; servomechanisms; 13 GB; CMOS IC; QIC tape drive systems; behavioral modeling; built-in analog test capability; calibration; clock recovery; dual-channel analog servo-signal processor; error correction; high-bandwidth VGA; peak-detector; real-time peak-detection; servo motor control; system integrity; Calibration; Clocks; Demodulation; Digital signal processing chips; Filtering; Magnetic heads; Servomechanisms; Servosystems; Signal processing; Testing;
Conference_Titel :
ASIC Conference and Exhibit, 1994. Proceedings., Seventh Annual IEEE International
Conference_Location :
Rochester, NY
Print_ISBN :
0-7803-2020-4
DOI :
10.1109/ASIC.1994.404615
