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STD Automatic_Audio_Switch_V2.0
Mode: Editors' pick
- 0
Update time：
2023-04-20 14:44:41
Creation time：
2018-01-19 19:07:21
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
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| 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 |
| 6 | GrO | GOL | HDR-1X1/2.54 | 1 |
| 7 | GrIn2 | GR1 | HDR-1X1/2.54 | 1 |
| 8 | TQ2-5V | K1 | TQ2-5V | 1 |
| 9 | RED | LED1 | LED-3MM/2.54 | 1 |
| 10 | LeftIn 1 | LI1 | HDR-1X1/2.54 | 1 |
| 11 | LeftIn 2 | LI2 | HDR-1X1/2.54 | 1 |
| 12 | LeftOut | LO | HDR-1X1/2.54 | 1 |
| 13 | DC 12V | P1 | HDR-1X2/2.54 | 1 |
| 14 | 2N7000 | Q1 | TO92-INLINE | 1 |
| 15 | 10k | R1,R2 | AXIAL-0.3 | 2 |
| 16 | 100k | R3,R5,R7 | AXIAL-0.3 | 3 |
| 17 | 1k | R4 | AXIAL-0.3 | 1 |
| 18 | 20k | R6 | RES-ADJ_3386P | 1 |
| 19 | 2k2 | R8 | AXIAL-0.3 | 1 |
| 20 | 100R | R9 | AXIAL-0.3 | 1 |
| 21 | 2M | R10,R12 | AXIAL-0.3 | 2 |
| 22 | 10R | R11 | AXIAL-0.3 | 1 |
| 23 | RightIn 1 | RI1 | HDR-1X1/2.54 | 1 |
| 24 | RightIn 2 | RI2 | HDR-1X1/2.54 | 1 |
| 25 | RightOut | RO | HDR-1X1/2.54 | 1 |
| 26 | LM358 | U2 | DIP08 | 1 |
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