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 |
