An 11-Tap 0.9mu CMOS Digital Transversal Equalizer For Digital Radio

A 0.9mu 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-bit coefficients. Void of any pipelining, the device is guaranteed for 27-MHz operation, and has demonstrated speeds in excess of 40 MHz. Physical and electrical characteristics of the device are described, along with its application to digital radio.