DT770-BT-Mod
About the DT770-BT-Mod PCB
DT770-BT-Mod is an open source PCB design by farbefreak, published on GitHub. It is a 2-layer board measuring 67.9 × 38.8 mm, with 30 components from 18 distinct parts.
Other key parts include the DW01-A/J. By type, the board carries 10 resistors, 6 capacitors, 3 switches, 3 diodes, 2 ICs and 2 transistors.
It belongs with the audio and iot & wireless designs in this gallery.
From the project
Hardware + Modding guide to add Bluetooth to DT 770 Headphones
This modification adds Bluetooth, USB-C charging and Audio support to DT-770 Pro Headsets from beyerdynamic. ======
A DIY hardware modification for Beyerdynamic headphones.
This project provides everything needed to build the modification yourself, including the PCB design, firmware, 3D-printable parts and a complete assembly guide. The project is designed to be relatively easy to build. No specialized equipment is required, but basic soldering and mechanical skills are necessary.
Main components on the DT770-BT-Mod
DT770-BT-Mod bill of materials (BOM)
30 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DW01-A/J DW01A | SOT-23-6 | U1 |
| 1 | ~ | Unbenannt | U17 |
| 2 | AO3400A | SOT-23 | Q1, Q2 |
| 1 | MLD-TYPE-C-3.1-16PIN-L7.35 USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
| 1 | Bluetooth Programming Header | PinHeader_1x07_P1.27mm_Vertical | J11 |
| 1 | F06F0.25 250mA | Fuse_0603_1608Metric | F1 |
| 3 | SKHHLQA010 | SW_Tactile_SKHH_Angled | SW1, SW2, SW3 |
| 1 | CT-1608URC-P4 Red | LED_0603_1608Metric | D1 |
| 1 | CT-1608UGC-P4 Green | LED_0603_1608Metric | D2 |
| 1 | CT-1608UBC-P4 Blue | LED_0603_1608Metric | D3 |
| 1 | SDFL1608S100KTF 10uH | L_0603_1608Metric | FB1 |
| 3 | CC0603KRX7R9BB104 100n 50V X7R | C_0603_1608Metric | C1, C2, C3 |
| 1 | CL10C150JB8NNNC 15p 50V C0G | C_0603_1608Metric | C4 |
| 2 | CL10A106KP8NNNC 10u | C_0603_1608Metric | C5, C6 |
| 6 | 0603WAF5101T5E 5k1 | R_0603_1608Metric | R1, R2, R3, R4, R5, R10 |
| 1 | 0603WAF1000T5E 100R | R_0603_1608Metric | R6 |
| 2 | 0603WAF1001T5E 1k | R_0603_1608Metric | R7, R8 |
| 1 | 0603WAF2201T5E 2k2 | R_0603_1608Metric | R9 |
DT770-BT-Mod design files
The KiCad project lives in the farbefreak/DT770-BT-Mod repository on GitHub; these links point at the commit this page was built from.
DT770-BT-Mod: common questions
How big is the DT770-BT-Mod PCB?
The DT770-BT-Mod measures 67.9 × 38.8 mm, has 2 copper layers and is 0.96 mm thick.
How many components are on the DT770-BT-Mod?
30 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the DT770-BT-Mod design files?
From the farbefreak/DT770-BT-Mod repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the DT770-BT-Mod design in my own project?
The repository has no license, so all rights stay with farbefreak. Use it as a reference, and ask the author before reusing the design.
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