Suptronics X1301 HDMI to CSI-2 Bridge

The SupTronics X1301 HDMI to CSI-2 Bridge with I2S for Raspberry Pi supports HDMI input and pass-through up to 1080p60, with audio routed over I2S. Features an active HDMI splitter for simultaneous capture and display.

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The SupTronics X1301 is an HDMI to CSI-2 bridge with I2S audio interface for Raspberry Pi 5, 4 and 3B+/3. It is equipped with the Toshiba TC358743XBG bridge chip and a one-to-two active HDMI splitter chip, enabling support for HDMI input and HDMI Pass-Through up to 1080P at a refresh rate of 60 fps.

With the HDMI Pass-Through feature, you can seamlessly output the HDMI signal (audio/video) from various source devices such as a Blu-ray Disc player, cable box, or satellite receiver to a TV or projector for local monitoring, even when the Raspberry Pi is in standby mode.

The board also enables HDMI audio input and transmission over I2S.

Note: The Raspberry Pi 4B, 3B+, and 3B do not support the HAT+ STANDBY power state, which means they cannot automatically turn off the X1301 when the Pi shuts down.

Raspberry Pi and Active Cooler not included

Features

• Compatible with Raspberry Pi 5, 4B, 3B+ and 3B
• Capable of handling video formats up to 2K Full HD (1920x1080, 60fps)
• Supports HDMI pass-through for local HDMI display
• Equipped with the HDMI to CSI-2 bridge chip: Toshiba TC358743XBG
• Supports MIPI CSI-2 with 4 data lanes, each with speeds of up to 1 Gbps per lane
• Enables HDMI audio input and transmission over I²S
• Prevents HDMI backpowering to the Raspberry Pi CSI
• Features a CSI-2 connector: 22-pin FPC with 0.5mm pitch
• Designed to be attached on top, allowing stacking with other HATs
• Compatible with the HAT+ STANDBY power state, automatically turning off when the Pi 5 shuts down

Applications

Here are some example applications of HDMI to CSI (Camera Serial Interface) conversion:

• Digital media adapters: HDMI to CSI adapters allow HDMI cameras to function like standard Raspberry Pi CSI cameras for processing HDMI input
• Smart monitors: Accept HDMI video streams and integrate them into display systems via CSI
• Set-top boxes (STBs): Handle video input from various HDMI sources efficiently through CSI conversion
• Smart TVs: Enable features like picture-in-picture or video conferencing by processing HDMI input with HDMI to CSI bridges
• Entertainment screens: Ensure compatibility with HDMI sources such as gaming consoles and streaming devices
• KVM over IP: Raspberry Pi-based IP-KVM solutions use HDMI to CSI to capture full HD video with low latency and H.264 encoding

HDMI to CSI adapters are especially useful for integrating HDMI cameras with Raspberry Pi boards, providing a seamless way to handle HDMI video streams in diverse applications.

Specifications

Power supply	5VDC via 40-pin GPIO header & 3.3VDC via FFC
Ports & connectors	HDMI video input connector ×1 – Type-A 19-pin
	HDMI pass-through connector ×1 – Type-A 19-pin
	MIPI connector ×1 – 22-pin 0.5mm pitch
MIPI cable length	30mm
PCB size	37.5mm × 30mm

Resources

• Software setup/tutorials
• Hardware information and assembly

Package Contents

• 1x Suptronics X1301 HDMI to CSI-2 Bridge
• 1x 22-pin to 15p-pin MIPI FFC 30mm x2 (for Raspberry Pi 4B/3B+/3B)
• 1x 22-pin MIPI FFC 30mm x2 (for Raspberry Pi 5B)
• 1x Screw pack x1

Raspberry Pi and Active Cooler not included