MS1826 Multi-Function Video Processor
The MacroSilicon MS1826 is a multi-function video processor integrating four independent HD audio/video inputs, four independent HD audio/video outputs, and four configurable I2S / SPDIF digital-audio interfaces. It supports four independent OSD windows with user-defined font libraries, four video playback engines, deinterlacing, video enhancement, frame-rate conversion, and multi-layer video blending for multiview and display-processing systems.
Key Specifications
| Item | Specification |
|---|---|
| HD input | 4 independent HD input channels |
| HD output | 4 independent HD output channels |
| Maximum resolution | Up to 4K@30Hz |
| Color space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 (input only) |
| Color depth | 8 / 10 / 12 / 16 bit |
| Audio interface | 4-channel I2S and SPDIF digital-audio input or output, 32 kHz to 192 kHz |
| HD audio | HBR Audio supported |
| OSD | Four independent OSD windows, up to 4096 characters per window |
| Font library | User-defined 1 bpp / 2 bpp / 4 bpp mixed font library up to 128 KB; maximum character size 32 × 64 |
| Frame buffer | Embedded 128 MB DDR3 SDRAM, 16-bit access, memory clock up to 400 MHz |
| Package | HLQFP-256, 28 mm × 28 mm |
| Power rails | 3.3 V, 2.5 V, 1.5 V, and 1.1 V |
| Compliance | Pb-free and RoHS 2.0 compliant |
Block Diagram
The block diagram shows how the HD input/output channels, video scaling pipeline, OSD, frame buffer, and control interfaces are connected inside MS1826.
Video Processing
- Supports VESA and CEA-861-F video formats, plus RGB / BT.601 / BT.709 colorimetry.
- Automatic input video timing and InfoFrame detection, input auto EQ, and programmable EDID.
- Programmable input HPD and output HPD status detection.
- Interlaced-to-progressive conversion, edge-correction deinterlacing, global noise reduction, and 3:2 / 2:2 pull-down detection.
- Dynamic peaking and brightness, saturation, contrast, and hue adjustment.
- Four independent video scalers with independent horizontal and vertical scaling and flexible frame-rate conversion.
- Up to eight input video layers for mixer output with alpha blending and Color Key.
- One fixed-angle rotation path supporting 90°, 180°, and 270°.
- Video-data compression for frame buffer, input cropping, and horizontal/vertical video flip.
Typical Applications
- 4-input / 4-output video processors
- Multiview, PIP / POP, and video stitching equipment
- Display control systems requiring OSD, scaling, rotation, and frame-rate conversion
- Audio/video processors requiring multi-channel digital audio and video blending
Design Notes
- MS1826 is the balanced 4-in / 4-out member of this series. For 4-in / 1-out systems, evaluate MS1826A; for 1-in / 4-out distribution systems, evaluate MS1826B.
- Embedded DDR, OSD, video blending, and frame-rate conversion all affect bandwidth planning. Validate against the target resolution, color depth, and number of layers.
- High-speed HD channels, DDR, power rails, and clock design should follow authorized MacroSilicon hardware references.
References
Notes
This page summarizes information from MacroSilicon's public product page. Confirm feature combinations, parameter limits, package details, supply status, and production support against the latest authorized datasheet, reference design, and project validation results.