GC2011A-PQ [Rochester]

The GC2011A is a 3.3V digital filter chip with 32 multiply-add filter cells. It supports 12-bit input data and 14-bit coefficients, with configurable output data widths (8-24 bits). The chip can implement 32-tap arbitrary phase filters or 64-tap linear phase filters with even/odd symmetry. Decimation and interpolation modes increase tap counts (e.g., 128 taps for half-rate I/O). Dual input ports enable complex data processing or dual-path operation. Features include coefficient double buffering, snapshot memory for adaptive filtering, gain adjustment in 0.5 dB steps, real-to-complex conversion, built-in diagnostics, and a microprocessor-compatible control interface. It consumes 1.6W at 80 MHz and is available in 160-pin QFP and PBGA packages.