GY PCM5102 DAC module - dwhinham/mt32-pi GitHub Wiki
This inexpensive DAC module can be found on AliExpress and other places like eBay for very little money. It features the Texas Instruments PCM5102A on a small breakout board with integrated 3.5mm jack.
Jumpers
The module has four solder-pad jumpers on the back which must be set correctly before sound will be produced. Some boards arrive with no jumpers soldered at all, or configured incorrectly, so be sure to check it and (re)solder the pads.
Ensure your board is configured as shown in the picture above, that is:
- 1 = L
- 2 = L
- 3 = H
- 4 = L
Pinout
Connect your module to the Raspberry Pi as follows:
| GY-PCM5102 pin | Physical Raspberry Pi pin | BCM pin |
|---|---|---|
SCK |
9 (unused, grounded) | N/A |
BCK |
12 | 18 |
DIN |
40 | 21 |
LCK |
35 | 19 |
GND |
6 | N/A |
VIN |
2 | N/A |
mt32-pi setup
This DAC requires no special configuration; simply enable I²S output in your mt32-pi.cfg:
[audio]
output_device = i2s