Pico-Audio-PCM5101A Audio Expansion Module
User Manual
Raspberry Pi Pico Header Compatibility:
Onboard Female Pin Header for Direct Attaching To Raspberry Pi Pico, Male Pin Header For Stacking Other Modules
* Please correctly connect the Module and Raspberry Pi Pico as the picture shown .
– Raspberry Pi Pico is NOT included.
What’s On Board:
- Dual channels 4-wire speaker header
- SMD adjustable resistor speaker output volume adjustment
- Audio decoder output observing points
- 3.5mm standard headphone jack
- RT9193-33 3.3V linear regulator
- PCM5101A audio decoder, 3-wire I2S bus
- APA2068 audio power amplifier
- Raspberry Pi Pico header for connecting Raspberry Pi Pico, stackable design
Pinout Definition:
| VSYS | Power supply | |
| 3V3(0UT) | Logic power | |
| GND | Ground | |
| GP26 | SIN | Audio data input |
| GP27 | BCK | Audio data bit clock input |
| GP28 | LRCK | Audio data word clock input |
Demonstration:
Documents / Resources
 | RespberryPi Pico-Audio-PCM5101A Audio Expansion Module [pdf] User Manual Pico-Audio-PCM5101A, Audio Expansion Module, Pico-Audio-PCM5101A Audio Expansion Module, Expansion Module |
