One-chip digital signal processor for ANC (active noise control) applications

One-chip digital signal processor has been developed, which is suitable for active noise control (ANC). This chip includes dual 8-bit ADCs, a DAC, CMOS operational amplifiers, a 16 bit fixed point arithmetic DSP and a 2K-ROM. It is fabricated using 0.8 /spl mu/m double poly, double metal CMOS process.