In this work we present a full analog turbo decoder for hard-disk EPR-IV read channels in CMOS technology. The design is based on a current-mode approach developed by Loeliger et al. [2001], for the analog implementation of sum-product algorithms. The circuit's main attractions are the coding gain offered by turbo codes over the uncoded EPR-IV channel, and the relative simplicity and power efficiency of the analog approach over the digital approach. The circuit is developed in a 0.18 μm CMOS technology and operates at a 1.8 V power supply, with a total simulated power consumption (including peripheral circuitry) of about 650 mW at 400 Mb/s.
An all-analog CMOS implementation of a turbo decoder forhard-disk drive read channels / Xotta, A.; Vogrig, D.; Gerosa, A.; Neviani, A.; Graell, I. AMAT A.; Montorsi, Guido; Bruccoleri, M.; Betti, G.. - 5:(2002), pp. 69-72. (Intervento presentato al convegno Circuits and Systems 2002. ISCAS 2002. IEEE International Symposium) [10.1109/ISCAS.2002.1010642].
An all-analog CMOS implementation of a turbo decoder forhard-disk drive read channels
MONTORSI, Guido;
2002
Abstract
In this work we present a full analog turbo decoder for hard-disk EPR-IV read channels in CMOS technology. The design is based on a current-mode approach developed by Loeliger et al. [2001], for the analog implementation of sum-product algorithms. The circuit's main attractions are the coding gain offered by turbo codes over the uncoded EPR-IV channel, and the relative simplicity and power efficiency of the analog approach over the digital approach. The circuit is developed in a 0.18 μm CMOS technology and operates at a 1.8 V power supply, with a total simulated power consumption (including peripheral circuitry) of about 650 mW at 400 Mb/s.Pubblicazioni consigliate
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https://hdl.handle.net/11583/1414277
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