Wide voltage power input and stable ground Supports a broad input voltage range with a stable ground reference to ensure reliable operation across different power sources and platforms. Analog outputs and headphone/line connection Left and right analog outputs plus a 3.5 mm stereo jack for line output and headphone drive, compatible with a variety of audio devices. UDA1334A DAC with I2S input The UDA1334A chip receives I2S digital audio inputs and converts them to analog stereo outputs for fidelity playback. I2S input interface and compatibility Input interface uses I2S bus with DIN (data), BCLK (bit clock), and WSEL (left/right channel select); compatible with mainstream microcontrollers and audio sources. HiFi performance Designed for low distortion and clear sound reproduction suitable for HiFi audio processing. Use scenarios Microcontroller based audio projects: connect an I2S output from a microcontroller to the DAC, then drive headphones or feed a separate amplifier. DIY HiFi or streaming setups: integrate with a streaming board or other I2S audio sources to produce clean stereo analog output for speakers or amplifiers. Multisource portable devices: employ in systems with varying power supplies to leverage the wide input voltage range while maintaining audio performance.