Pin Details of IC HA 11229
Functions : Sound IF amplifier
| Pin No. | Function | Voltage |
| 1. | Sound IF amplifier input | 3.3 |
| 2. | Decoupling capacitor | 3.3 |
| 3. | Sound IF input | 3.3 |
| 4. | Bias circuit | 5.4 |
| 5. | Sound IF amplifier output | 5.2 |
| 6. | Not connected | NC |
| 7. | Ground (-Ve)supply voltage | 0 |
| 8. | Detected output signal | 3.1 |
| 9. | Not connected | NC |
| 10. | Buffer(output stage)amplifier output | 2.4 |
| 11. | Detector coil | 3.4 |
| 12. | Detector coil | 4.1 |
| 13. | Ground (-Ve)supply voltage | 0 |
| 14 | Positive (+Ve)supply voltage | 5.6 |
