Pin Details of IC A220 D
Substitute : TBA120S , SN76620
Functions :
- Sound IF amplifier
- FM detector
- AF detector
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 capasitor | 1.9 |
14. | Sound IF input (5.5Hz.) | 1.9 |