UTC TA7343AP LINEAR INTEGRATED CIRCUIT
FM STEREO MULTIPLEX
DECORDER
DESCRIPTION
The UTC TA7343AP is a monolithic integrated circuit
consisting of a phase locked loop FM stereo demodulator.
equipment.
It
is designed for Car stereo, cassette recorder and other
FEATURES
*Wide operating supply voltage : Vcc=3V ~ 12V
*High pilot lamp ON sensitivity (VL(on)=9mV)
*Built-in indicator lamp drive circuit.
*High distortion THD=0.08% at Vi+200Mv
SIP-9
BLOCK DIAGRAM
L.P.F-1
Vcc
2
Input
1
Phase
Dector
4
Vcc
76kHz
o
AF
DC
19kHz<90
1/2
1/2
Buffer
Lamp
Trigger
19kHz<0
o
FM switch
1/2
Stereo
Decorder
38kHz
Voltage
Regulator
8
9
7
L.P.F-2
6
SW2
GND
5
3
SW1
LED
L-CH OutputR-CH Output
38khz
check
FC
SW1 VCC
SW2 38KHz
Vcc
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-004,A