TA31142

· 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

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.