Features: The UDA1334A chip supports I2S digital auditory inputs (DIN, BCLK, WSEL) and converts to analog stereo outputs . is adapt for hifi auditory processing with low distortions and restoring clear sound quality. Input interfaced: I2S bus (DIN: data, BCLK: bit clock, WSEL: left and right channel select), compatibles mainstream microcontrollers and auditory sources; Power input supports wide voltages and and ground (GND) is stable. Output: left and right channel analog output +3.5mm headphone port to meet line output and headphone drive,adapt to a variety of auditory devices. PLL Clock Synchronization: Phase-locked control through the PLL pin to enhances clock stability, reduce signal jitters, ensure the timing accuracy of auditory data transmission, and improve playbacks smoothness. Specifications: Chip UDA1334A Input: I2S bus Material: ABS Size: about 38.2x25.5x5mm/1.5x1x0.2inch Weight: 10g for auditory Development, Portable Player,auditory Expansion, Fast Digital to Analog auditory Conversion. Package Includes: 1PC UDA1334A I2S decoding module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.