Title :
Optimize transistor size for FIR pre-emphasis with programmable coefficients
Author :
Cheng, Dezhong ; Liang, Bangli ; Chen, Dianyong ; Kwasniewski, Tad
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, ON
Abstract :
A finite impulse response (FIR) 6-tap pre-emphasis (PEP) filter with programmable coefficients was employed to counteract intersymbol interface (ISI) in high speed backplane data communication or optical communication. The proposed circuit can operate at the data rates up to 10 Gb/s. This circuit is designed in 90 nm CMOS technology and operates at 1.0 V. Simulation results show that the circuit improves signal eye diagram opening by at least 120 mV at receiver end for the B mode channel from IEEE P802.3 ap Task Force Channel Model Material. The total power consumption is 41.2 mW for the whole pre-emphasis, including the retiming circuit and the pre-drive buffers.
Keywords :
CMOS digital integrated circuits; FIR filters; programmable filters; transistors; CMOS technology; FIR pre-emphasis; IEEE P802.3ap Task Force Channel Model Material; bit rate 10 Gbit/s; finite impulse response filter; high speed backplane data communication; intersymbol interface; optical communication; power 41.2 mW; pre-drive buffers; programmable coefficients; retiming circuit; size 90 nm; transistor size optimization; voltage 120 mV; Backplanes; CMOS technology; Circuit simulation; Data communication; Finite impulse response filter; Intersymbol interference; Optical fiber communication; Optical filters; Signal analysis; Signal design;
Conference_Titel :
Communications, 2008. APCC 2008. 14th Asia-Pacific Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-4-88552-232-1
Electronic_ISBN :
978-4-88552-231-4
