APA2068 Audio Expansion Module for Raspberry Pi Pico with 5W Speaker

Download User Guide for Pico Audio Expansion

This Audio Expansion Module has been designed to work with Raspberry Pi Pico. The audio expansion can generate speaker and headphone signal output simultaneously. An 8Ω 5W speaker is included in the offer. The Raspberry Pi Pico Audio Expansion module supports a wide range of audio sampling rates. The PCM5101A low power stereo decoder is used in the Pico Audio Expansion. The module uses the I2S bus for the transmission of audio signals.

Features of Audio Expansion Module for Raspberry Pi Pico

• Standard audio jack 2.5mm for external headphone
• Designed to work with Raspberry Pi Pico
• Effective EMI reduction through 3-Wire I2S
• Dual-channel speaker headers
• Wide audio sampling rate from 8 Hz to 384000 Hz
• Stereo sound effect output
• User manual and development resources are included with Sound Card Code and Audio Play Code for Raspberry Pi Pico

Specification of Audio Expansion Module for Raspberry Pi Pico

• Pin Header: Standard Raspberry Pi Compatible Pin Header (Raspberry Pi Pico is NOT included)
• Audio Decoder: PCM5101A
• Stackable Design Header: Male Pin Header to stack other modules
• Operating Voltage: 5V
• Logic Voltage: 3.3V
• DAC SNR: 106 dB
• Audio Bus: I2S
• Speaker Driver: 2.6W / Channel 4Ω BTL
• Weight: 156 grams
• Dimensions: 52 mm x 21mm | 5.2 cm x 2.1 cm

Hardware Components

• SMD Adjustable Resistor – Volume Adjustment for Speaker Output
• APA2068 – Audio Power Amplifier
• Speaker Header 4-Wire Dual Channel
• PCM5101A Audio Decoder – 3-Wire I2S Bus
• Audio Decoder Output Observing Points
• RT9193-33 – 3.3V Linear Regulator
• Standard 2.5mm Headphone Jack
• Raspberry Pi Pico Header – Stackable Design

Items Included

• Audio Expansion (x1)
• Speaker 8Ω 5W (x1)

Compatible Items (Not Included)

• Raspberry Pi Pico