MS2133 USB3.0 HD AV Capture And HD 2.0 Loop-Out IC
The MacroSilicon MS2133 is a USB 3.0 HD video and audio capture processing IC integrating a USB 3.0 Device controller, data transceiver, and audio/video processing modules. It transfers HD audio/video input over USB 3.0 to PCs, smartphones, and tablets for preview or capture.
MS2133 supports HD 2.0 loop-out, three I2S inputs, three I2S outputs, one S/PDIF input, one S/PDIF output, ARCRX / ARCTX, and multi-channel audio mixing. USB video output supports YUV422, MJPEG, RGB24, and NV12 modes and is compatible with Windows, Android, Linux, and macOS systems. The device integrates an MCU and supports functional customization and secondary development.
Key Specifications
| Item | Specification |
|---|---|
| Video input | HD 2.0 RX with ARC support |
| Video loop-out | HD 2.0 TX with ARC support; HD RX to HD TX bypass / pass-through mode |
| Maximum input resolution | 3840 x 2160 @ 60Hz YUV444 |
| Maximum loop-out resolution | 3840 x 2160 @ 60Hz YUV444 |
| USB interface | USB 3.0 Device, compatible with USB 2.0 Device |
| USB video protocol | UVC 1.0 |
| USB audio protocol | UAC 1.0 |
| USB video output formats | YUV422, MJPEG, RGB24, NV12 |
| Maximum USB video output | 3840 x 2160 @ 60Hz (MJPEG) |
| HDCP | HDCP 2.3 / HDCP 1.4 supported |
| Audio I/O | 3× I2S input, 3× I2S output, 1× S/PDIF input, 1× S/PDIF output |
| Audio capability | 96 kHz / 24-bit and 48 kHz / 16-bit stereo; 48 kHz / 16-bit 5.1-channel mode |
| HD RX audio capture | 5.1 / 7.1-channel audio capture supported |
| Audio processing | ARC audio return and multi-channel audio mixing supported |
| Peripheral control | PWM output, ambient-light (SID) control interface, programmable GPIO |
| Operating systems | Windows XP/7/8/10/11, Android 5.0 or later, Linux, macOS |
| Clock | External 24 MHz passive crystal, integrated PLL |
| Reset | Integrated power-on reset circuit |
| Package | LQFP-100, 14 mm × 14 mm, MSL3 |
| Compliance | RoHS compliant |
Block Diagram
The block diagram shows the relationship between HD 2.0 RX / TX, loop-out, ARC, video processing, audio mixing, UVC / UAC encoding, USB 3.0 Device, I2S / S/PDIF, MCU, and SPI Flash inside MS2133.
Key Features
HD RX
- HD 2.0 input support.
- RGB444, YCbCr422, YCbCr444, and YCbCr420 color-space support.
- Deep Color 24 / 30 / 36 / 48-bit modes.
- CEA-861-E and CEA-861-F video formats.
- Maximum input resolution of
3840 x 2160 @ 60HzYUV444. - HDCP 2.3 / HDCP 1.4 support.
- ARC support.
HD TX
- HD 2.0 output support.
- ARC support.
- EDID / HPD processing support.
- Maximum output resolution of
3840 x 2160 @ 60HzYUV444. - HD RX to HD TX pass-through output mode.
Audio
- USB audio supports 96 kHz / 24-bit and 48 kHz / 16-bit stereo output.
- USB audio supports 5.1-channel mode.
- HD RX 5.1 / 7.1-channel audio capture support.
- 3× I2S input and 3× I2S output support.
- 1× S/PDIF input and 1× S/PDIF output support.
- ARC audio return support.
- Multi-channel audio mixing support.
USB 3.0
- Integrated USB 3.0 Device, compatible with USB 2.0 Device.
- USB video compliant with UVC 1.0.
- USB audio compliant with UAC 1.0.
- USB video output supports YUV422, MJPEG, RGB24, and NV12.
- Maximum USB video output resolution of
3840 x 2160 @ 60Hz(MJPEG).
Peripherals And System
- PWM output support.
- Ambient-light (SID) control interface support.
- Programmable GPIO support.
- External 24 MHz passive crystal with integrated PLL.
- Integrated power-on reset circuit.
Typical Applications
- HD video capture cards
- Security monitoring
- Medical imaging
- Live streaming
- 4K capture devices requiring HD 2.0 loop-out and audio mixing
Design Notes
- MS2133 is suitable for complex capture products requiring HD 2.0 input, USB3.0 capture, HD 2.0 loop-out, ARC, and multi-channel audio mixing.
3840 x 2160 @ 60HzUSB output depends on MJPEG mode. Validate YUV422, RGB24, NV12, and other formats against USB bandwidth and host performance.- Loop-out, ARC, I2S, S/PDIF, and audio mixing increase system configuration complexity; validate firmware, drivers, and channel mapping against the target audio topology.
- HDCP 2.3 / 1.4 involves licensing and key-management requirements; products should comply with applicable authorization rules.
References
Notes
This page is organized from the MS2133 datasheet information provided by the user. Confirm feature combinations, parameter limits, package details, drivers, firmware, and production support against the latest authorized MacroSilicon datasheet, reference design, and project validation results.