TA31142 - Unisonic Technologies

TA31142 LOW POWER IF RECEIVER IC

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 .

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 CONFIGURATIONS OSCIN 1 OSCOUT 2 MIXOUT 3 VCC IFIN DEC FSKREF IFOUT QUAD AFOUT 4 5 6 7 8 9 10 11 LPFIN 12 LPFOUT 13 BS 14 CHARGE 15 FSKOUT 16 ALM 17 REGCON 18 REGOUT 19 VSS 20 MIXIN UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R103-015,A UTC TA31142 NUMBER SYMBOL 1 2 3 LINEAR INTEGRATED CIRCU.