Audio Expansion Module for Raspberry Pi Pico

The Pico-Audio is a high-quality audio expansion module for Raspberry Pi Pico. Built around the PCM5101A stereo DAC, it delivers clear audio output via both 3.5mm headphone jack and dual speaker headers simultaneously. The I2S interface ensures clean signal transmission with minimal electromagnetic interference.

Stackable design with female headers on the bottom and male headers on top allows you to add other Pico modules. Includes sample code for audio playback and USB sound card functionality.

Key Features

• PCM5101A DAC – High-quality stereo audio decoder
• Wide Sample Rate – 8Hz to 384kHz supported
• Dual Output – Headphone and speakers simultaneously
• I2S Interface – 3-wire bus, low EMI
• Built-in Amplifier – APA2068 for direct speaker drive
• Volume Control – SMD adjustable resistor for speakers
• Stackable Design – Add other Pico modules

Specifications

• Operating Voltage: 5V
• Logic Level: 3.3V
• DAC SNR: 106 dB
• Speaker Power: 2.6W per channel (4Ω BTL)
• Audio Decoder: PCM5101A
• Amplifier: APA2068

Outputs

• 3.5mm stereo headphone jack
• Dual channel 4-wire speaker headers

Package Contents

• 1× Pico-Audio expansion module