Title :
A low-power and high-speed equalizer for magnetic storage read channels
Author :
Ndjountche, T. ; Unbehauen, Rolf
Author_Institution :
Erlangen-Nurnberg Univ., Germany
Abstract :
Design techniques for read channel equalizers used in magnetic recording systems are presented. The equalization is based on a multi-level dual decision feedback architecture. The signal processing at low power and high speed is realized by using a continuous-time adaptive forward filter with an infinite impulse response. Furthermore, circuit structures with reduced offset-voltage sensitivities are developed for the equalizer implementation. As a result, the data rate in the intended application can be greater than 200 Mbits/s
Keywords :
CMOS analogue integrated circuits; IIR filters; adaptive equalisers; adaptive filters; analogue processing circuits; continuous time filters; decision feedback equalisers; digital magnetic recording; high-speed integrated circuits; integrated circuit design; low-power electronics; 200 Mbit/s; 500 mW; analog discrete-time implementation; continuous-time adaptive forward filter; design techniques; high-speed equalizer; infinite impulse response; low-power equalizer; magnetic recording systems; magnetic storage read channels; multi-level dual decision feedback architecture; offset-voltage sensitivities; Adaptive equalizers; Adaptive filters; Circuits; Decision feedback equalizers; Finite impulse response filter; IIR filters; Magnetic memory; Magnetic recording; Magnetic separation; Sampling methods;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921835
