A 1 GHz CMOS analog front-end for a generalized PRML read channel
- 24 October 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 40 (11) , 2275-2285
- https://doi.org/10.1109/jssc.2005.857372
Abstract
A 1 GHz CMOS analog front-end for general partial response maximum likelihood (GPRML) read channel in hard disk drive application has been implemented in 0.35 /spl mu/m CMOS. A continuous time analog filter fulfills the relaxed equalization for GPRML detection and can save up to 35% power consumption for the whole read channel. An analog DFE-based timing recovery loop is implemented to avoid the extremely long latency in the digital signal processing path (Viterbi decoder). The measured performances is 1.1 dB off simulations at 800 MHz and 1.6 dB off at 1GHz. The chip draws 240 mW from a 3.3 V supply at 800MHz clock and 380 mW from a 3.6 V supply at 1 GHz clock.Keywords
This publication has 12 references indexed in Scilit:
- A 1GHz CMOS analog-front-end for a partial-response read channelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Timing recovery for sampling detectors in digital magnetic recordingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A 700 Mb/s BiCMOS read channel integrated circuitPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A 6-b 1.3-Gsample/s A/D converter in 0.35-μm CMOSIEEE Journal of Solid-State Circuits, 2001
- A 300-MHz fixed-delay tree search-DFE analog CMOS disk-drive read channelIEEE Journal of Solid-State Circuits, 2001
- Widely programmable high-frequency continuous-time filters in digital CMOS technologyIEEE Journal of Solid-State Circuits, 2000
- Low-jitter process-independent DLL and PLL based on self-biased techniquesIEEE Journal of Solid-State Circuits, 1996
- A 160-MHz analog front-end IC for EPR-IV PRML magnetic storage read channelsIEEE Journal of Solid-State Circuits, 1996
- CMOS active filter design at very high frequenciesIEEE Journal of Solid-State Circuits, 1990
- Maximum-likelihood sequence estimation of digital sequences in the presence of intersymbol interferenceIEEE Transactions on Information Theory, 1972