X400 V3.0 DAC+ AMP Full-HD Class-D Amplifier I2S PCM5122 Audio Expansion Board For Raspberry Pi 3 Model B+(Plus)/3B Music Player

Features: Full-HD audio up to 24-bit/192kHz playback Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5122) Class leading audio; 112db SNR, and THD of 0.0019% Built in High quality Class-D stereo audio amplifier (TI TPA3118D2) Up to 230W Into a 8- BTL Load at 24Vdc Capable of driving 4 Ohm speakers (also works with higher impedance speakers) Built in high quality audio headphone amplifier (TI TPA6133A) Uses the Texas Instruments ultra-low-noise voltage regulator (output noise< 10VRMS) Uses the Texas Instruments high efficiency step-Down DC converter (up to 95%) 6V~26Vdc converted to 5.1V, 3A to power the Raspberry-Pi Uses the genuine ALPS RK163 series potentiometer for smooth volume adjustment Built in high quality IR sensor (Vishay -the world's leading supplier of infrared receivers) Onboard RCA connectors Onboard 3.5mm stereo headphone jack Onboard speaker & power screw terminals Onboard 4pin PH2.0 connector allowing to connect a external lighted power switch to control power Onboard gold-plated high-current DC power jack (5.5x2.5mm) Uses the digital I2S audio signals to reduce CPU load over USB audio solutions Connects directly to the Raspberry-Pi - No wiring required Powers the Raspberry-Pi - no additional power supply Reserved Raspberry-Pi GPIO pin header (2x13Pins) Pop-noise can be improved by enabling GPIO control AMP can be enabled / disabled with jumper link WARNING: DO NOT APPLY POWER TO YOUR RASPBERRY-PI VIA THE PI's MICRO USB SOCKET. Specifications: Power supply: 6-26Vdc ( >=3A is recommend) GPIO used : LRCK - IO19, BCK - IO18, DATA - IO21, IR - IO26, AMP mute - IO22 Analog audio output level: 2V RMS Headphone max output power: 142mW at 16 Amplifier max output power: 230W at 8 BTL Load at 24Vdc Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry-Pi I2S) PCB size: 87 x 56mm More info. can refer to WIKI Package Included: 1 x X400 V3.0 Expansion Board 1 x Installation screw pack