4300 Megasamples/s Wave Digital Filter Implementation In Bit-parallel Tspc Circuit Technique

In this contribution we demonstrate how the TSPC circuit technique [I] when applied to bit-parallel carrysave (CS) wave digital filter architectures [4], provides considerable performance improvements over traditional implementations. Implementation results for a thirdorder lattice wave digital filter in a 0.8~ standard CMOS process indicate that a sample frequency of 300MHz is achievable, which is more than double the sample rate reported in previous works on the same filter[2],[5]. It is the high speed of the TSPC technique and absence of carry propagation in CS arithmetic, that provide the improvements.