TA31273FN - Toshiba Semiconductor

TA31273FN AM RF/IF Detector IC

( DataSheet : www.DataSheet4U.com ) TA31273FN TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA31273FN AM RF/IF Detector IC The TA31273FN is an RF/IF detector IC for AM radio. The IC incorporates an RF amp, 2-level comparator, and local x8 circuit. Features • • • • • • RF frequency: 240 to 450 MHz IF frequency: 10.7 MHz Operating voltage ran.

Features

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• RF frequency: 240 to 450 MHz IF frequency: 10.7 MHz Operating voltage range: 3.0 to 5.5 V Current dissipation: 6.8 mA (typ.) (Not operating local oscillator) Current dissipation at BS: 0 µA (typ.) Small package: 20-pin SSOP (0.65-mm pitch) Weight: 0.09 g (typ.) Block Diagram SAW 20 19 FIL FIL OUT IN 18 17 RSSI BS RSSI 16 15 14 13 12 11 RF RF MIX GND1 RF MONI OUT DEC IN IN Comparator ×8 OSC VCC1 LOBS IN 1 2 3 MIX IF IF OUT VCC2 IN DEC REF GND2 DATA 4 5 6 7 8 9 10 www.DataSheet4U.com 1 www.DataSheet4U.com 2002-07-08 TA31273FN Pin Function (The Values Of Resistor And Capa.