PIN Details of IC CA 3068
Function :
- High gain wide-band IF Amplifier
- Keyed AGC with noise immunity circuits
- Delayed AGC for Tuner
- Video detector
- Video pre-amplifier
- Intercarrier sound detector
- Sound IF Amplifier
- Zener regulated DC reference source
| PinNo. | Function | Voltage |
| 1. | Not connected | NC |
| 2. | Intercarrier sound IF signal (5.5 MHz.)output | 5 |
| 3. | Keyed AGC input | 0.6 |
| 4. | IF signal AGC | 2 |
| 5. | Ground (-Ve supply voltage ) | 0 |
| 6. | IF signal input | 7 |
| 7. | RF AGC Voltage output for tuner | 0 |
| 8. | RF AGC dealay voltage | 0.8 |
| 9. | Voltage for IF amplifier | 7 |
| 10. | Regulated power supply ground | 0 |
| 11. | Not connected | NC |
| 12. | Sound vision IF amplifier | 1.6 |
| 13. | Secound vision IF amplifier | 1.6 |
| 14. | Fine tone control | - |
| 15. | Positive(+Ve)supply terminal | 12 |
| 16. | Bias for Pin No.12 and 13 | 16 |
| 17. | Ground (-Ve supply voltage) | 0 |
| 18. | Regulated power supply | 11 |
| 19. | Composite video signal output | 4.4 |
