Product description
PCM5122 I2S DAC is a breakout board that allows digital I2S audio to be converted into an analog stereo signal. The module is based on the PCM5122 DAC chip and is suitable for projects where microcontrollers or single-board computers need to generate high-quality audio, for example music players, sound generators or embedded audio systems.
The board receives digital audio data via the I2S interface and converts the signal to analog stereo line-level output via a 3.5 mm jack or via solder pads on the board. It can be used together with platforms such as Raspberry Pi, ESP32 or other microcontrollers with I2S output. The DAC chip does not require an external MCLK signal in standard mode, which makes integration simple – just connect the power supply and I2S signals and the module is ready to use.
The module can operate in a simple hardware mode without configuration, but also offers advanced settings via I2C or SPI. This makes it possible to control functions such as volume, mute, digital filters and equalizer directly from software.
Specifications:
- DAC chip: PCM5122
- Type: DAC, digital-to-analog converter (stereo)
- Audio interface: I2S
- Configuration interface: Hardware mode, I2C or SPI
- Supply voltage: 3 to 5 V
- Logic level: 3.3 V
- Signal-to-noise ratio: 112 dB
- Total harmonic distortion (THD+N): -93 dB
- Audio formats: 16-, 24- or 32-bit PCM
- Audio output: Stereo line-level via 3.5 mm jack or via solder pads
- Gain adjustment: -6 dB to +15 dB
- Dimensions: 38 x 23 x 6.4 mm