Description

A stereo I2S DAC block built round the PCM5102A with a 3.5 mm headphone jack on board. It turns digital I2S audio into clean line-level analogue for headphones or powered speakers. For music players, streamers and audio projects on 3.3 V boards.

Highlights

• High-quality stereo output. PCM5102A DAC, 112 dB dynamic range (datasheet).
• 3.5 mm jack fitted. Plug in headphones or a cable to powered speakers.
• Three I2S lines. BCK, DIN and LRCK, no master clock needed.
• Mute pin. XSMT is held high by a 10 kΩ pull-up; pull it LOW to mute.
• Brick-compatible. Two round holes fit standard building bricks.

In the box

• 1 × I2S DAC block (TK103), 6-pin right-angle header fitted

Headphones, cables and microcontroller are not included.

Specifications

• DAC: PCM5102A, stereo, I2S input
• Supply: 3.3 V only, never 5 V
• Output: 2.1 V RMS full scale, line level
• Dynamic range: 112 dB (datasheet)
• Pins: GND, 3V3, BCK, DIN, LRCK, XSMT
• Output connector: 3.5 mm stereo jack

Works with

ESP32, Raspberry Pi Pico and other 3.3 V boards with an I2S output. Pairs with the TK100 I2S Amplifier and TK101 PDM Microphone.