Title :
A 3-V, 10-100-MHz continuous-time seventh-order 0.05° equiripple linear phase filter
Author :
Rao, Narendra ; Balan, V. ; Contreras, R.
Author_Institution :
DataPath Syst. Inc., Los Gatos, CA, USA
fDate :
11/1/1999 12:00:00 AM
Abstract :
A 3-V continuous-time Gm-C filter based on a seventh-order 0.05° equiripple response is presented for read channels. The design features a low-voltage, wide-dynamic-range transconductor, a stable biasing scheme, and a power-efficient filter architecture. The filter is tunable for cutoff frequencies from 10 to 100 MHz and provides up to 13 dB of magnitude boost and up to ±30% of group delay adjustment for use in high-data-rate, extended partial-response maximum-likelihood channels. The filter is implemented in 0.29-μm BiCMOS technology, occupies 0.5 mm2, and dissipates 120 mW.
Keywords :
BiCMOS analogue integrated circuits; continuous time filters; delays; disc drives; equiripple filters; hard discs; linear phase filters; maximum likelihood detection; partial response channels; 0.29 micron; 10 to 100 MHz; 120 mW; 3 V; BiCMOS technology; continuous-time Gm-C filter; cutoff frequencies; equiripple linear phase filter; extended partial-response maximum-likelihood channels; group delay adjustment; magnitude boost; power-efficient filter architecture; read channels; stable biasing scheme; wide-dynamic-range transconductor; Analog-digital conversion; Bandwidth; BiCMOS integrated circuits; Clocks; Cutoff frequency; Delay; Digital filters; Dynamic range; Nonlinear filters; Transconductors;
Journal_Title :
Solid-State Circuits, IEEE Journal of
