Equalization in hard disk drive read channels

Nuno Miguel de Figueiredo Garrido, Francisco Antonio Bucho Cercas
2014 2014 21st International Conference on Telecommunications (ICT)  
This paper presents a comprehensive non-exhaustive comparative study of hard disk drive read-channel equalization techniques used in the readback process of magnetically stored information. The main read channel architectures: partial-response maximum likelihood (PRML) and decision feedback equalization (DFE) based systems, are compared in power consumption, layout area, data signalling rate and data density. This work focuses on the key component of the read channel, presenting a
more » ... e analog solution for the pulse-slimming equalizer capable of reducing power consumption and die area by a factor of ten, whilst showing equivalent response to a FIR filter implementation.
doi:10.1109/ict.2014.6845145 dblp:conf/ict/GarridoC14 fatcat:flnrix6b4jeyrlgnlphus4hcoy