Title :
A comparative study of two adaptive continuous-time filters for decision feedback equalization read channels
Author :
Garrido, N.D.F. ; Franca, José E. ; Kenney, John G.
Author_Institution :
Dept. of Electr. & Comput. Eng, Integrated Circuits & Syst. Group, Lisboa, Portugal
Abstract :
This paper presents a comparative study of two adaptive continuous-time 3rd order allpass equalizers for magnetic disk decision feedback equalization read channels. These are based on adaptive current-mode Gm-C structures employing low-mismatch high bandwidth pseudo-differential balanced transconductors and polarized MOSFET arrays as integrating capacitors. Transistor level simulation results are presented to demonstrate the performance characteristics of both structures
Keywords :
adaptive equalisers; adaptive filters; all-pass filters; continuous time filters; decision feedback equalisers; frequency response; magnetic disc storage; magnetic recording; transient response; DFE read channels; adaptive continuous-time equalizers; adaptive continuous-time filters; current-mode Gm-C structures; decision feedback equalization read channels; magnetic disk read channel; performance characteristics; polarized MOSFET arrays; pseudo-differential balanced transconductors; third order allpass equalizers; transistor level simulation; Adaptive filters; Capacitors; Decision feedback equalizers; Finite impulse response filter; Frequency; Linearity; Magnetic separation; Sampling methods; Switches; Transconductors;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608592
