Title :
An analog front-end signal processor for a 64 Mbits/s PRML hard-disk drive channel
Author :
Choi, Davy ; Pierson, Richard ; Trafton, Fredrick ; Sheahan, Benjamin ; Gopinathan, Venugopal ; Mayfield, Glenn ; Ranmuthu, Indumini ; Venkatraman, Srinivasan ; Pawar, Vivek ; Lee, Owen ; Giolma, William ; Krenik, William ; Abbott, William ; Johnson, Ken
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
fDate :
12/1/1994 12:00:00 AM
Abstract :
This BiCMOS IC contains all the analog front-end components necessary for the design of a 21-64 Mb/s HDD channel. Major functional blocks include an automatic gain control circuit having both analog and digital modes of operation, a programmable filter with 6-33 MHz bandwidth range, two phase-locked loops with 24-72 MHz center frequency ranges, a differential 6 bit flash A/D converter with 24-72 MHz sampling rates, and a write precompensator having 600 ps step size
Keywords :
BiCMOS analogue integrated circuits; analogue processing circuits; analogue-digital conversion; automatic gain control; hard discs; partial response channels; phase locked loops; programmable filters; 21 to 64 Mbit/s; 24 to 72 MHz; 6 to 33 MHz; 600 ps; BiCMOS IC; HDD channel; PRML hard-disk drive channel; analog front-end signal processor; automatic gain control circuit; differential 6-bit flash A/D converter; phase-locked loops; programmable filter; sampling rates; write precompensator; Analog integrated circuits; Analog-digital conversion; Bandwidth; BiCMOS integrated circuits; Digital filters; Digital-to-frequency converters; Frequency conversion; Gain control; Phase locked loops; Signal processing;
Journal_Title :
Solid-State Circuits, IEEE Journal of
