A 4OMHz programmable semi-systolic transversal fitter

This paper will report on a transversal filter architecture with programmable coefficients. A test chip of a 7 tap fitter with 10b data, 8b coefficients and a 40MHz sampling rate has been realized. The 38.5K transistors with a total chip area of 14.6mm
²
in a 1.5μ CMOS technology achieve a functional throughput rate-per chip area of
4×10^{12}
Hz times gates per cm
²
.