Item specifics
Description
The Rockchip RK628F is a highly integrated video interface bridge IC designed for embedded display systems and video interface conversion applications. It supports HDMI, parallel RGB and BT.1120 video inputs, with multiple output interface options for connecting compatible display panels and video-processing systems.
With support for V-by-One® HS, LVDS, MIPI DSI, MIPI CSI and HDMI output interfaces, the RK628F can help hardware designers address different interface requirements within embedded computing, commercial display and industrial HMI projects.
The device is suitable for evaluating video interface expansion solutions for Rockchip-based platforms and other compatible system architectures. Actual compatibility depends on the selected input and output interfaces, resolution and timing requirements, hardware design, firmware configuration and software support.
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| Model | RK628F |
| Device Type | Video Bridge Chip / Interface Converter IC |
| Input Interfaces | HDMI 2.0 (1.4 compatible, HDCP 1.4), Parallel RGB, BT.1120 |
| Output Interfaces | Dual MIPI DSI, Dual MIPI CSI, Dual LVDS, GVI, HDMI 1.4, RGB, BT.1120 |
| HDMI Input Resolution | Up to 4096×2160@60fps |
| Dual MIPI DSI Output | Up to 2560×1600@60fps |
| Dual MIPI CSI Output | Up to 3840×2160@60fps |
| GVI Output | Up to 4096×2160@60fps |
| Dual LVDS Output | Up to 1080p@60fps |
| Data Rate | 6 Gbps (per lane) |
| Scaling | Built-in Scaler, non-integer ratios supported |
| Color Formats | RGB888, YUV444, YUV422, YUV420 (8/10bit) |
| Audio Interface | 8-ch I2S (RX/TX passthrough, HDMI audio extraction) |
| Control Interface | I2C, GPIO |
| Supply Voltage | 0.99V~1.21V / 1.71V~1.89V / 3.135V~3.465V |
| Operating Temperature | -20℃ ~ +80℃ |
| Package | BGA-144L (8 × 8 mm) |
| Software Framework | MISC (Display) / V4L2 (HDMI IN) |
Multiple video input interfaces: HDMI, parallel RGB and BT.1120.
Flexible video output options: V-by-One® HS, dual LVDS, dual MIPI DSI, dual MIPI CSI, HDMI 1.4, parallel RGB and BT.1120.
High-resolution video support: Up to 4K-class input and output capabilities, depending on the interface and operating configuration.
Integrated video scaling: The device includes a video scaler. Supported scaling ratios and operating limits should be confirmed against the applicable datasheet revision.
Digital audio interface: Digital audio interface support is listed in the manufacturer's product information.
System integration: Designed for applications that require video interface expansion or conversion.
Typical Applications
HDMI to MIPI CSI video capture: Paired with RK3588/RK3566 platforms, converting 4K60 HDMI to MIPI CSI for live capture cards and video transmission systems
Multi-screen signage & industrial HMI: HDMI IN → Dual MIPI DSI / Dual LVDS OUT for dual independent displays or high-resolution panels
Adding HDMI input to SoCs: Enabling HDMI reception for processors like RK3288, RK3399, RK3588 without native HDMI IN
HDMI audio extraction: Using 8-channel I2S RX/TX passthrough to output HDMI embedded audio to an external DAC
4K GVI large-screen conversion: 4K HDMI IN → 4K GVI OUT for commercial strip screens and TV GVI panels
FAQ:
The RK628F is a video interface bridge IC from Rockchip. It supports HDMI, parallel RGB and BT.1120 inputs, together with multiple video output interfaces, including V-by-One® HS, LVDS, MIPI DSI, MIPI CSI and HDMI.
The manufacturer's product information lists 4K-at-60-fps capability for HDMI input and V-by-One® HS and MIPI CSI output. This does not establish that every output interface or every input/output combination supports 4K at 60 Hz. Confirm the exact configuration against the datasheet before design approval.
The manufacturer's product information lists V-by-One® HS, dual LVDS, dual MIPI DSI, dual MIPI CSI, HDMI 1.4, parallel RGB and BT.1120 outputs. Check the detailed specifications for the resolution, timing and configuration limits of each interface.
The manufacturer identifies display interface expansion for the RK3588 and other Rockchip processors as an application scenario. Compatibility with a particular RK3588 board depends on hardware connections, firmware, driver support and the intended video signal path.
The device provides multiple output interface options. The number of outputs that can operate simultaneously, their independence and their supported timing combinations must be verified from the detailed datasheet and the intended configuration.
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