MS2131 is a USB 3.0 HD video and audio acquisition and processing chip, which integrates USB 3.0 device controller, data transceiver module, audio and video processing module. MS2131 can transmit the HD input audio and video signals to PC, smartphone and tablet for preview or acquisition through USB 3.0 interface, and can also display or expand the information on PC, smartphone and tablet to larger display devices through USB 3.0 interface. MS2131 supports HD loop out function, supports USB Host recording while playing audio and video through HD output. MS2131 supports 2 channels digital audio (I²S) input, and supports digital audio and HD audio mixing process. MS2131 supports 2 channels digital audio (I²S) output and SPDIF digital audio output. MS2131 output supports YUV422 and MJPEG modes, compatible with Windows, Android and macOS systems.


      Supports RGB444, YCBCR422, YCBCR444, YCBCR420 

     color space

     USB video output resolution:Default max resolution


     Supports deep color 24/30/36 bit mode
     USB video conforms to UVC1.0 specification
     Supports CEA-861-E/CEA-861-F video format
     USB audio conforms to UAC1.0 specification
     Max input resolution: 4K@30Hz

     USB video output supports both YUV422 and MJPEG 


     Supports EDID / HPD process
     Windows XP/7/8/10/11
     Supports HD RX to HD TX pass-through mode output
     Android 5.0 or higher
     Max output resolution: 4K@30Hz
     USB audio default 48KHz stereo output     
     Supports 2 channels digital audio (I²S) input
     External 24MHz passive crystal oscillator

     Supports 2 channels of digital audio I²S, 1 channel of 

     SPDIF output

     On-chip PLL

     Supports 2 channels I²S input audio and HD audio mixing 


     On-chip power on reset
     Integrated USB 3.0 device
     LQFP-100 plastic(14mm×14mm)
     Compatible with USB 2.0 device mode
     RoHS compliant

Function Block Diagram