Title :
A Mixed-Signal Matched-Filter Design and Simulation
Author :
Zahabi, M.R. ; Meghdadi, V. ; Cances, J.-P. ; Saemi, A.
Author_Institution :
Univ. of Limoges, Limoges
Abstract :
A 0.35 mu-CMOS mixed-signal programmable filter suitable for high-rate communication systems is designed and investigated. The proposed filter has analog input and analog-sampled outputs. Filter taps are stored in a digital memory and can be changed on the fly. The filter structure is based on a bank of digitally controlled transconductors along with small capacitors. The employed transconductors are based on simple inverter and thus can be integrated efficiently with the digital parts of a system. A FIR cosine rolloff filter is designed and investigated by simulation in time and frequency domains. The results show that the proposed structure has a good speed-complexity-consumption trade-off.
Keywords :
CMOS integrated circuits; FIR filters; matched filters; programmable filters; CMOS filter; FIR filter; capacitors; cosine rolloff filter; digital memory; digitally controlled transconductors; filter design; filter taps; matched-filter; mixed-signal filter; programmable filter; CMOS technology; Circuits; Decoding; Digital filters; Digital signal processing chips; Energy consumption; Finite impulse response filter; Frequency; Inverters; Transconductors;
Conference_Titel :
Digital Signal Processing, 2007 15th International Conference on
Conference_Location :
Cardiff
Print_ISBN :
1-4244-0882-2
Electronic_ISBN :
1-4244-0882-2
DOI :
10.1109/ICDSP.2007.4288571