| ??? 11/28/01 13:16 Read: times |
#17009 - RE: generating DTMF tones |
Or use an LPC controller from Philips and make your own custom design DTMF generator. Use a port in PushPull mode connect R-2R resistor ladder and an operational amplifier and you have a DTMF generator. |
| Topic | Author | Date |
| generating DTMF tones | 01/01/70 00:00 | |
| RE: generating DTMF tones | 01/01/70 00:00 | |
| RE: generating DTMF tones | 01/01/70 00:00 | |
RE: generating DTMF tones | 01/01/70 00:00 |