user-adapter
open-headset-interconnect-standard
An open-source OHIS User adapter circuit for common headset types
Components (22)
| Reference | Value | Description |
|---|---|---|
| Q1 | 2N3904 | |
| BOM1-BOM4 | .1" Jumper | |
| BOM5-BOM8 | M3 14mm brass standoff | |
| BOM9-BOM12 | M3 6mm SS screw | |
| BOM13-BOM16 | M3 10mm SS screw | |
| BOM17 | Main Board | |
| BOM18 | Top Board | |
| BOM19 | Bottom Board | |
| BOM20-BOM23 | M3 3mm ABS standoff | |
| C1 | 1uF | |
| C2 | 47uF | |
| C3 | 1nF | |
| J1 | OHIS_8p8c_Shield | |
| J2 | Headphones | |
| J3 | Microphone | |
| J4,SW1 | PTT | |
| J5 | Dynamic Mic Bypass | |
| J6 | HP or CTIA | |
| R1 | 75k | |
| R2 | 27k | |
| R3 | 470 | |
| RV1 | 1k |