| ??? 11/27/03 12:45 Read: times |
#59536 - Relay Substitute |
THere there any substitute than a Relay. Relays are huge and take too much space on PCB so any substitute to Relays. My circuit over here need to share the Spaeker between ISD chip and uC speaker circuit. http://www.angelfire.com/ak/shahzad73/Speaker.gif ALso i want to control whether the voice output from speaker goes to speaker or a telephone DAA circuit. All of these cicuits are working individually.... that is speaker produces beep when key pressd, ISD plays a voice message stored in it on Speake. and if speaker is disconnected and a DAA is attached then the voice output goes to telephone line. So by looking the circuit i just need to conttol when the speake is connected to ISD or uC Speaker circuit and ISD is connected to spekaer or DAA. Relays can be used but i think 4 relays are required. any other suggestion other than relays Thanks Shahzad Aslam |
| Topic | Author | Date |
| Relay Substitute | 01/01/70 00:00 | |
| RE: Relay Substitute | 01/01/70 00:00 | |
| RE: Relay Substitute | 01/01/70 00:00 | |
| RE: Relay Substitute | 01/01/70 00:00 | |
| RE: Relay Substitute | 01/01/70 00:00 | |
| Is it analogue? | 01/01/70 00:00 | |
| RE: Is it analogue? | 01/01/70 00:00 | |
| RE: Is it analogue? | 01/01/70 00:00 | |
| RE: Relay Substitute | 01/01/70 00:00 | |
| RE: Can the ISD do it? | 01/01/70 00:00 | |
| RE: Can the ISD do it? | 01/01/70 00:00 | |
RE: Can the ISD do it? | 01/01/70 00:00 |



