A general purpose, programmable digital filter chip consisting of eight second order (2 poles & 2 zeros) sections was implemented in 4ji NMOS technology. This device uses 24 bit coefficients and data and 48 bits of internal accumulation. These features make this device better than existing 16 bit DSP chips in applications where quantization noise and digital filter stability are of critical importance. A bit serial architecture plus internal multiplexing integrates these eight second order sections in one 24 pin package. This component, named the KSC2408, can be configured (programmed) to be used in different modes and architectures.
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