Digital Volume Control
This is the simple circuit
| C1 | 1 | 0.1uf Ceramic Disc Capacitor | |
| U1 | 1 | DS1669 Digital Pot IC (See Notes) | |
| S1, S2 | 2 | Momentary Push Button Switch | |
| MISC | 1 | Board, Wire, Socket For U1 |
NOTE :
- S1 volume up, S2 volume down.
- The input signal should not less than -0.2 volts.
- Using a dual polariity power supply (+-5V works fine) will cure most clipping problems. You will have to check the data sheet for the correct pins to connect your voltages.
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