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 G.; BRUCCOLERI M.; BETTI G.. - 5(2002), pp. 69-72. ((Intervento presentato al convegno Circuits and Systems 2002. ISCAS 2002. IEEE International Symposium.
Titolo: | An all-analog CMOS implementation of a turbo decoder forhard-disk drive read channels |
Autori: | |
Data di pubblicazione: | 2002 |
Abstract: | In this work we present a full analog turbo decoder for hard-disk EPR-IV read channels in CMOS te...chnology. 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. |
ISBN: | 0780374487 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11583/1414277