www.
fairchildsemi.
com TMC2242A/TMC2242B Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz Features • TMC2242A and TMC2242B are pin-compatible with TMC2242 • User selectable interpolate gain, -6 dB or 0 dB (2242B) • 30, 40 and 60 MHz speed grades • User selectable 2:1 decimation, 1:2 interpolation, and equal-rate filter modes • Passband ripple ±0.
01 dB • Stopband rejection 59.
4 dB from 0.
28 to 0.
50 x fs • Cascading two TMC2242A or TMC2242B meets CCIR 601 low-pass filter requirement • Dedicated 12-bit 2's complement input data port and 16-bit output data port with user-selectable rounding from 9 to 16 bits • Two's complement or offset binary output format • Built-...

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