Expansion Shield x400 for Raspberry Pi B+/2B/3B

Expansion Shield x400 for Raspberry Pi B+/2B/3B/4B is discontinued now, we recommend Expansion Shield x600 as a suitable replacement.

INTRODUCTION

The X400 Expansion Shield is a highly cost-effective audio hat which fits on the GPIO of the Raspberry Pi Model B+, Raspberry Pi 2 Model B and Raspberry Pi 3 Model B. It uses i2S interface audio solution and supports 24-bit /192KHz high quality sound. It is compatible with other audio equipment via RCA lotus socket. It includes a built-in high fidelity headphone amplifier, where you can plug in a 3.5mm audio jack directly.

The shield has two digital amplifier output ports, up to 2 x30w speakers can be directly connected. Use this hat to make your Raspberry Pi in to a lossless audio player or a network radio. We recommend using an OS image such as Volumio, RuneAudio, PiMusicBox etc.

SPECIFICATION

• Input Voltage
  • 6V to 24V DC converted to 5V, 3A via step-down DC/DC converter to power the Raspberry Pi 
• Audio  
  • Full-HD audio
  • up to 24-bit/192kHz playback  
  • Class leading audio; 112db SNR, and THD of 0.0019%  
  • Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5122)
  • Uses the digital I2S audio signals to reduce CPU load over USB audio solutions  
  • Integrated hardware volume control  - Mute can be enabled / disabled via jumper
  • Built in High quality audio headphone amplifier (TI TPA6133A)
  • Earphone AMP can be enabled / disabled via jumper
  • Built in high quality Class-D stereo audio amplifier (TI TPA3118D2)  
  • Up to 2 x 20W into 4 ohm
  • AMP can be enabled/disabled via jumper  
  • Phono/RCA connectors 
  • 3.5mm stereo audio jack
  • Speaker terminals
• Wireless  
  • Built in IR sensor (38KHz)
• Misc  
  • Power output socket  
  • DIP switch to remove connection from RPi’s pin header
  • Directly connected on top of the Raspberry Pi using the board GPIO header pins 
  • No wiring or soldering is required 
  • Pin mappings identical to 40-pin header of the R-Pi in order to support existing expansion boards 
  • Suitable for Raspberry Pi Model B+, 2 Model B and 3 Model B
• Dimensions
  • 85 x 56mm (Same footprint as Raspberry Pi) 

DOCUMENTS

• Driver Download and User Manual 

SHIPPING LIST

• X400 Expansion Board x1
• Nylon Spacers (M3 x 20mm) x4
• Nylon Screws (M3 x 6mm) x8
• Jumper Wires x2