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STD electret microphone
electret microphone
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Update time：
2021-12-27 19:08:59
Creation time：
2021-12-26 16:06:30
Description
Description
A clean voiceover almost noise free electret microphone circuit can be a cheap replacement for expensive contained digital microphone units
Design Drawing
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 22u | C1 | CAP-D3.0×F1.5 | 1 |
| 2 | 10u | C2,C7 | CAP-D3.0×F1.5 | 2 |
| 3 | 0.1u | C3,C4 | RAD-0.1 | 2 |
| 4 | 10n | C5 | RAD-0.1 | 1 |
| 5 | 47u | C6 | CAP-D3.0×F1.5 | 1 |
| 6 | 220u | C8 | CAP-D3.0×F1.5 | 1 |
| 7 | 320B/PJ-001 3.5Jacks | J1 | AUDIO-SMD_C3792 | 1 |
| 8 | ELECTRET | Q1 | 9.7ELECTRET | 1 |
| 9 | 4.7 | R1,R2 | R_AXIAL-0.5 | 2 |
| 10 | 10k | R3 | R_AXIAL-0.5 | 1 |
| 11 | 2.5k | R4 | R_AXIAL-0.5 | 1 |
| 12 | 15K P | RP1 | RES-ADJ-TH_3386P | 1 |
| 13 | TDA2822M | U1 | DIP8 | 1 |
| 14 | U-C-M5DW-W-1 | USB1 | MICRO-USB-SMD_MICRO-USB-A13 | 1 |
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