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	X400 V3.0 DAC+AMP Expansion Board	Hardware		Software
	Product Overview
	For Use With - Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B / 3 Model B+ / 3 Model A+ Operating System - Moode Audio Player - OSMC - Openelec - Raspbian Jessie - Volumio - Pi Core Player     Key Features       X400 V3.0 EXPANSION BOARD - 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 2×30W Into a 8-Ω 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< 10μVRMS) - 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 pluggable speaker & power screw terminals - Onboard PH2.0 connector allowing to connect a lighted power switch - 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       X400 V3.0 ALUMINUM METAL ENCLOSURE - Ultra-compact aluminum chassis  - All ports and slots of the case can match with Raspberry Pi and X400 perfectly - Exhaust holes surface can reach perfect heat dissipation - Equipped with 19mm metal latching power switch - Equipped with high quality solid aluminum potentiometer Knob - Raspberry Pi status LEDs still visible - Easy to change the Raspberry Pi OS SD card - No need to open the case     Specification     - Power supply: 6-26Vdc，≥3A recommended - 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 16Ω - Amplifier max output power: 2×30W at 8Ω BTL Load at 24Vdc - Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry Pi I2S) - PCB size 87 x 56mm     Notes     - WARNING: DO NOT APPLY POWER TO YOUR RASPBERRY PI VIA THE PI's MICRO USB SOCKET.
	Packing List
	X400 V3.0 BOARD KIT     - X400 v3.0 Expansion Board x 1   - Screw M2.5 *6mm x 8   - Spacer M2.5 *20mm x 4             X400 V3.0 CASE KIT     - X400 v3.0 enclosure x 1   - Metal power switch x 1   - Aluminum potentiometer Knob x 1   - Screw M2.5 *28mm x 4   - Screw M3 *6mm x 6   - 1.5mm hex kety x 1
	Optional Accessories
	Power Supply Unit   - AC 100 - 240V input   - 12Vdc 3A output - W/ EU and US plug - 5.5*2.5 DC plug - 1.2M cable w/ magnet ring   See details   X400 v3.0 case   - Full aluminum chassis    - Match with RPi and X400 - Metal power switch  - Aluminum volume Knob  - Perfect heat dissipation    See details         -   -   -   -   -     See details         -   -   -   -   -     See details
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