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TA31142 - LOW POWER IF RECEIVER

General Description

The UTC TA31142 is a low power IF receiver IC and is suitable for use as the second IF downconverter in double-conversion paging systems.

Key Features

  • Extremely low power operation with power-down feature.
  • Built-in crystal oscillator for mixer local oscillator.
  • Mixer input frequency: 10-50 MHz.
  • Quadrature detector.
  • On-chip bit-rate filter.
  • Audio output.
  • 1-bit comparator with open collector output.
  • 1V regulator.
  • 1.1V low battery alarm TSSOP-20 PIN.

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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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UTC TA31142 LINEAR INTEGRATED CIRCUIT LOW POWER IF RECEIVER IC DESCRIPTION The UTC TA31142 is a low power IF receiver IC and is suitable for use as the second IF downconverter in double-conversion paging systems. It is well-suited for POCSAG paging applications and incorporates a 2-level FSK demodulator consisting of a quadrature FM demodulator, on-chip bit-rate filter, and 1-bit comparator. An on-chip 1V regulator is provided for convenient biasing of off-chip circuitry. FEATURES *Extremely low power operation with power-down feature *Built-in crystal oscillator for mixer local oscillator *Mixer input frequency: 10-50 MHz *Quadrature detector *On-chip bit-rate filter *Audio output *1-bit comparator with open collector output *1V regulator *1.