TA31273FN Datasheet, PDF (1/14 Pages) Toshiba Semiconductor – AM RF/IF Detector IC

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 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)
Block Diagram
Weight: 0.09 g (typ.)
SAW
20 19 18 17
FIL FIL RSSI BS
OUT IN
RSSI
16 15 14 13 12 11
MIX GND1 ^RF MONI ^{RF RF}
IN
OUT
DEC IN
Comparator
×8
OSC
IN ^VCC1 LOBS
1
2
3
MIX
IF
IF
OUT ^VCC2 IN DEC REF GND2 DATA
4
5
6
7
8
9
10
1
2002-07-08