NDLI: An 11-tap 0.9- mu m CMOS digital transversal equalizer for digital radio

Content Provider	IEEE Xplore Digital Library
Author	Reeve, H.C. Ward, R.B. Lin, C.J. Martin, G.D.
Copyright Year	1989
Description	Author affiliation: AT&T Bell Lab., North Andover, MA, USA (Reeve, H.C.; Ward, R.B.)
Abstract	A 0.9- mu m CMOS VLSI device was designed and developed to perform as an adaptive transversal equalizer for digital radio. The device contains an 11-tap multiply-add structure complete with control hardware for 12-b coefficients. Void of any pipelining, the device is guaranteed for 27-MHz operation, and it has demonstrated speeds in excess of 40 MHz. A digital radio modem has been designed by AT&T using the VLSI device and is now being manufactured for a 64-QAM (quadrature amplitude modulation) 4-GHz radio system. BER (bit error rate) performance versus S/N ratio was within 1.8 dB of theoretical (no error correction) at a BER of 1*10/sup -8/. M-curves were measured for the 20-MHz channel and were very close to theoretical. Finally, modem acquisition statistics were tabulated under various channel distortions, with the average time of acquisition being less than 200 ms.
Starting Page	413
Ending Page	417
File Size	365747
Page Count	5
File Format	PDF
DOI	10.1109/GLOCOM.1989.64005
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-11-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equalizers Bit error rate Very large scale integration Digital communication Modems Hardware Pipeline processing Manufacturing Quadrature amplitude modulation Error correction
Content Type	Text
Resource Type	Article

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