Summary
Asia-Pacific Conference on Communications
2008
Session Number:15-AM2-C
Session:
Number:1569126509
Optimize Transistor Size for FIR Pre-emphasis with Programmable Coefficients
Dezhong Cheng, Bangli Liang, Dianyong Chen, Tad Kwasniewski,
pp.-
Publication Date:2008/10/14
Online ISSN:2188-5079
DOI:10.34385/proc.27.1569126509
Summary:
A finite impulse response (FIR) 6-tap pre-emphasis (PEP) filter with programmable coefficients was employed to counteract inter-symbol interface (ISI) in high speed backplane data communication or optical communication. The proposed circuit can operate at the data rates up to 10Gb/s. This circuit is designed in 90nm CMOS technology and operates at 1.0V. Simulation results show that the circuit improves signal eye diagram opening by at least 120mV at receiver end for the B mode channel from IEEE P802.3ap Task Force Channel Model Material. The total power consumption is 41.2mW for the whole pre-emphasis, including the retiming circuit and the pre-drive buffers.