MS9333C HD 1x2 Splitter IC with Audio
The MacroSilicon MS9333C is an HD signal 1x2 splitter IC with a maximum signal rate of 3 Gbps, also supporting I2S and SPDIF audio output. At 3 Gbps, it supports HD input resolutions up to 4K x 2K @ 30 Hz, with 10/12/16-bit color depth and YCbCr420 4K x 2K @ 60 Hz format support.
The HD input includes clock and data recovery with adaptive EQ. The HD output provides signal pre-emphasis for longer cable runs. The chip integrates internal EDID RAM.
Key Specifications
| Item | Specification |
|---|---|
| Product type | HD 1x2 splitter with audio output |
| Maximum signal rate | 3 Gbps |
| Video interfaces | 1x DVI/HD input, 2x DVI/HD outputs |
| Maximum resolution | 4K x 2K @ 30 Hz; YCbCr420 4K x 2K @ 60 Hz |
| Color depth | 10/12/16-bit input/output |
| Audio output | I2S, SPDIF; 32 kHz to 192 kHz |
| HD input | Adaptive EQ; automatic input monitoring |
| HD output | Pre-emphasis; automatic sink monitoring |
| DDC | 5 V TTL DDC channel |
| EDID | Integrated 512 KB EDID RAM |
| Package | LQFP64 |
Block Diagram
The block diagram shows HD distribution, I2S/SPDIF audio extraction, output pre-emphasis, and EDID management inside MS9333C.
Key Features
- Distributes one HD input to two HD outputs with synchronized digital audio.
- Supports 4K @ 30 Hz and YCbCr420 4K @ 60 Hz formats.
- Adaptive input EQ and output pre-emphasis for different cable conditions.
- Automatic monitoring of HD input and each output sink.
- Large integrated EDID RAM.
Typical Applications
- HD 1x2 splitters with audio output
- AV devices requiring synchronized multi-display and digital audio output
- Conference systems, digital signage, and professional AV distribution
- HD distribution sub-boards in matrices and chassis
Design Notes
- Compared with MS9332C, MS9333C adds I2S/SPDIF audio output; confirm audio routing requirements during selection.
- Validate multi-output EDID and HDCP strategy at system level.
- Refer to the official datasheet for electrical parameters and pinout.
References
Notes
This page is based on the official MacroSilicon product page. Confirm parameter limits and production support with the latest datasheet and project validation.