Pico Audio - Audio Module for Raspberry Pi Pico (Inc. Speakers)

The Pico Audio is an audio expansion module and speaker set designed for the Raspberry Pi Pico. The module incorporates a CS4344 low-power stereo decoder and uses the I2S bus for transmitting audio signals. It supports a wide range of audio sampling rates and allows 3.5mm headphone and speaker signal output at the same time via the onboard APA2068 amplifier! The board includes a small volume control dial and audio decoder observation pads. A set of 8-ohm 5W speakers are included which come with a 4-pin connection that matches the onboard connector. Raspberry Pi Pico not included. You'll need a Pico with male headers soldered to it. You can grab a Pico here and Pico male headers here, or buy a Pico with pre-soldered headers. Features

* Standard Raspberry Pi Pico header, supports the Raspberry Pi Pico

* Standard 3.5mm audio jack, for connecting an external headphone

* Dual channel speaker headers, for direct driving speakers

* 8~384000Hz audio sampling rate

* Stereo sound effect output

* Using 3-wire I2S, effectively reducing EMI

* Comes with online resources and manual (Raspberry Pi Pico audio play code, sound card code)

Specification

* Operating voltage: 5V

* Audio Decoder: CS4344

* DAC SNR: 106 dB

* Logic level: 3.3V

* Audio bus: I2S

* Speaker driving: 2.6W/channel (4ohm BTL)

Resources

* Product Wiki

Package Contents

* 1x Pico Audio Module

* 1x 8Ω 5W speaker set

Raspberry Pi Pico not included What's Onboard?

1) Dual channel 4-wire speaker header 2) SMD adjustable resistor - Speaker output volume adjustment 3) Audio decoder output observing points 4) 3.5mm standard headphone jack 5) RT9193-33 - 3.3V linear regulator 6) CS4344 - Audio decoder, 3-wire I2S bus 7) APA2068 - Audio power amplifier 8) Raspberry Pi Pico header - For connecting Raspberry Pi Pico Pinout

Revision History

* As of 18/10/2022: We are now stocking the updated version of this product, which includes some changes to the chips used on the PCB as well as some GPIO pin changes. Previous pinout:

* GP26 = DIN

* GP27 = BCK

* GP28 = LRCK