Adafruit I2S Stereo Decoder – UDA1334A Breakout


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Approx Restocking Date: 25 to 30 Days
SKU: 1104420
  • Data Interface:I²S
  • Number of Bits:16, 20, 24
  • Number of DAC’s:1
  • Supplied Contents:Board(s)
  • Utilized IC / Part:UDA1334A


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Brand: Adafruit
Category: Breakout Board
Tags: Adafruit, stereo decoder

This fully-featured UDA1334A I2S Stereo DAC breakout is a perfect match for any I2S-output audio interface. It’s affordable but sounds great! The NXP UDA1334A is a jack-of-all-I2S-trades: you can use 3.3V – 5V logic levels (a rarity), and can process multiple different formats by setting two pins to high or low. The DAC will process data immediately, and give you a clear, analog, stereo line level output. It’s even cool with MCLK-less I2S interfaces such as the Raspberry Pi (which it’s ideal for) – a built in PLL will generate the proper clock from the bitclock signal.

For inputs, you can use classic I2S (the default) or 16-bit, 20-bit or 24-bit left justified data. You can set it up to take an input system/master clock but we default-set it to just generate it for you, so you only need to connect Data In, Word Select (Left/Right Clock) and Bit Clock lines. If you want, there’s a mute pin and a de-emphasis filter you can turn on.

We put in plenty of ferrite beads, a low-dropout regulator, and the recommended band-pass filter so you get a very nice clean output. With a sine-wave generator we swept through 20-20KHz and saw no attenuation or distortion. Plug into either the 3.5mm stereo headphone jack or the breadboard-friendly pads. We think you’ll be pleased with this DAC!

Each order comes with one I2S Stereo DAC breakout and some header you can solder on.


  • Evaluate the NXP’s successful UDA1334A low power audio DAC
  • Perfect match for any I2S-output audio interface
  • I2S (default), 16-bit, 20-bit, or 24-bit left justified data for the inputs
  • Gives a clear analogue or stereo line-level output
  • Offers a mute pin and a de-emphasis filter
  • Able to process multiple different formats by setting two pins to high or low
  • Compact and economical

Package Includes:

1 x Adafruit I2S Stereo Decoder – UDA1334A Breakout

SKU: 1104420 Category: Tags: ,




Logic Input (V)


Shipping Weight 0.008 kg
Shipping Dimensions 10 × 10 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: USA