Adafruit I2S Stereo Decoder - UDA1334A Breakout
100 units available with a short lead time.
The Adafruit UDA1334A I2S Stereo DAC Breakout converts digital I2S audio into clean stereo analogue line-level output. Built around the NXP UDA1334A, this versatile DAC supports 3.3V and 5V logic levels and works with MCLK-less interfaces like the Raspberry Pi — a built-in PLL generates the master clock from the bit clock signal automatically.
With ferrite beads, a low-dropout regulator, and a recommended band-pass filter on board, the output is clean across the full 20 Hz – 20 kHz range with no audible attenuation or distortion. Output is available via a 3.5 mm stereo headphone jack or breadboard-friendly pads.
Key Features
- NXP UDA1334A Stereo DAC – High-quality I2S to analogue conversion with clean line-level output
- 3.3V & 5V Logic Compatible – Works with a wide range of microcontrollers and single-board computers
- No MCLK Required – Built-in PLL generates the master clock from the bit clock, ideal for Raspberry Pi
- Multiple Data Formats – Supports classic I2S (default), plus 16-bit, 20-bit, and 24-bit left-justified formats
- 3.5 mm Stereo Jack – Plug in headphones or connect to powered speakers and amplifiers
- Breadboard-Friendly Pads – Alternative output for custom wiring and integration
- Clean Audio Path – Ferrite beads, LDO regulator, and band-pass filter for low-noise output
- Mute & De-emphasis Pins – Optional hardware mute and de-emphasis filter control
Ideal For
- Raspberry Pi audio output — works without a master clock
- Microcontroller projects requiring high-quality stereo DAC output
- Hi-fi audio prototypes and media player builds
- Any I2S-capable device needing analogue audio output
Package Contents
- 1× Adafruit I2S Stereo DAC Breakout (UDA1334A)
- 1× Header Strip
Resources
The Adafruit I2S Stereo Decoder - UDA1334A Breakout appears in the following collections:
