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OM4031T - Digital post-detection filter for FSK data receivers

General Description

The OM4031T is intended for performance enhancement of FSK data receivers that do not have a built-in post-detection filter.

It contains a digital moving average filter to remove noise from the demodulated data.

Key Features

  • External clock frequency 30 to 80 kHz (typ. 38.4 kHz).
  • Supported data rates 600, 1200, 2400 and 4800 bits/s (typ. ).
  • Double bandwidth option (not for 4800 bits/s).
  • Schmitt-triggered inputs for optimum slope tolerance.
  • Enable input for power-down mode.
  • Open-drain output (3-state in power-down mode).
  • No external components required.
  • Single supply voltage from 1.8 to 6.0 V.
  • Very low operating current (1.5 µA typ. ).

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET OM4031T Digital post-detection filter for FSK data receivers Preliminary specification File under Integrated Circuits, IC03 October 1994 Philips Semiconductors Philips Semiconductors Preliminary specification Digital post-detection filter for FSK data receivers FEATURES • External clock frequency 30 to 80 kHz (typ. 38.4 kHz) • Supported data rates 600, 1200, 2400 and 4800 bits/s (typ.) • Double bandwidth option (not for 4800 bits/s) • Schmitt-triggered inputs for optimum slope tolerance • Enable input for power-down mode • Open-drain output (3-state in power-down mode) • No external components required • Single supply voltage from 1.8 to 6.0 V • Very low operating current (1.5 µA typ.) • Operating temperature from −10 to +70 °C.