PIN DETAILS of IC A220 D
Substitude : TBA120S,SN76620
Functions : 1.Sound IF Amplifier.
2.FM Detector.
3.A.F.Ampliefier
Pin No. Function Voltage
1. ground( -Ve supply voltage ) 0
2. Decoupling capacitor 1.9
3. Ground( -Ve supply voltage ) 0
4. Ground( -Ve supply voltage ) 0
5. volume control (Electronic attenuator) 3.8
6. FM Detector -
7. FM Detector 3.3
8. Audio output 4
9. FM Detector 3.3
10. FM Detector -
11. Positive (+ Ve supply voltage) 11
12. Ground (+ Ve supply voltage) 0
13. Decoupling capacitor 1.9
14. Sound I.F. Input(5.5 Mhz.) 1.9
