OngoingAutomatic_Audio_Switch_V2.0
STDAutomatic_Audio_Switch_V2.0
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：Creation time:2018-01-19 19:07:21Update time:2023-04-20 14:44:41
Description
This project is an automatic line-level audio switch.
It has 2 line-level inputs and 1 output.
When there is no signal on input 1, input 2 will be on the output.
When a signal is detected on input 1, the relais will switch the input 1 to the output.
Then when there is no signal on input 1 for about 15 seconds, the relais will switch again to input 2.
Design Drawing
schematic diagram
Preview
Schema_Signal_Detector_V2.0Open in Editor
PCB
Preview
PCB_Automatic_Audio_Switch_V2.0Open in Editor
BOM
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1u | C1 | CAP-D3.0XF1.5 | 1 |
| 2 | 33u | C2,C3,C4 | CAP-D3.0XF1.5 | 3 |
| 3 | BZX55C5V1 | D5 | DO-35 | 1 |
| 4 | 1N4148 | D6,D7 | DO-35 | 2 |
| 5 | GrIn1 | GL1 | HDR-1X1/2.54 | 1 |
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