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TMC2242A Datasheet Digital Half-band Interpolating/decimating Filter

Manufacturer: Fairchild (now onsemi)

Overview: .fairchildsemi. TMC2242A/TMC2242B Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60.

General Description

The TMC2242A and TMC2242B are fixed-coefficient linear-phase half-band (low-pass) digital filters.

They can be used to halve or double the sampling rate of a digital signal.

When used as a decimating post-filter with a double-speed oversampling A/D converter, they greatly reduce the cost and plexity of anti-aliasing filters required ahead of the A/D converter.

Key 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.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Exar Logo TMC2242A Digital Half-Band Interpolating/Decimating Filter Exar
Exar Logo TMC2242B Digital Half-Band Interpolating/Decimating Filter Exar

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TMC2242A Distributor