Title :
A CMOS analog continuous-time FIR filter for 1Gbps cable equalizer
Author :
Lin, Xiaofeng ; Liu, Jin
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Dallas, TX, USA
Abstract :
An analog 6-tap FIR filter for Gbps coaxial cable equalizer is presented in this paper. The tap delay line is realized with a linear phase second order low pass filter with delay time 125ps for each tap. The delay time can be tuned from 100ps to 300ps while keeping a constant group delay. Simulation results show that our FIR filter can successfully recover the 1Gbps differential digital signal transmitted over 300 feet 8281 coaxial cables under 2.5 V supply and 22.25mW power consumption.
Keywords :
CMOS analogue integrated circuits; FIR filters; continuous time filters; delay lines; equalisers; linear phase filters; low-pass filters; 1 Gbit/s; 100 to 300 ps; 2.5 V; 22.25 mW; CMOS; analog continuous-time FIR filter; coaxial cable equalizer; constant group delay; delay time; differential digital signal; linear phase second order low pass filter; tap delay line; Clocks; Coaxial cables; Delay effects; Delay lines; Energy consumption; Equalizers; Finite impulse response filter; Frequency; Intersymbol interference; Sampling methods;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205965
