C790
Overview
C790 is an upgraded version of C779, C790 has made the following upgrades.
- Solved the issue of back powering of HDMI IN interface
- New added interface to support I2S audio
- C790 supports CSI-2 2 lane and 4lane at the same time
Geekworm HDMI to CSI Module Series:
Convert HDMI signal acquisition into CSI signal and I2S audio signal. The maximum capture resolution depends on the HDMI to CSI converter board as well as the Raspberry Pi hardware.
Raspberry Pi hardware are primarily divided into two series, one supporting a maximum of 1080P60Hz and the other supporting a maximum of 1080P50Hz.
- Raspberry Pi versions that support up to 1080P60Hz: CM3, CM4, Pi 5B
- Raspberry Pi versions that support up to 1080P50Hz: zero, zero2, Pi3B, Pi4B, etc.
Picture | Model | Description | Max Input Resolution | I2S Audio | HDMI Capture Chip | PCB Dimension | CSI-2 Connector | Supported SOC |
---|---|---|---|---|---|---|---|---|
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C779 | HDMI to CSI-2 | 1080p50fps | NO | Toshiba TC358743XBG | 35 x 50 mm | 15-PIN FPC (pitch 1.0 mm) | Pi 5B / 4B / 3B+ / 3B / 3A+ / Zero / Zero W/ Zero 2W |
![]() |
C790 | HDMI to CSI-2 | 1080p60fps | Yes | Toshiba TC358743XBG | 30 x 45 mm |
|
Pi 5B / 4B / 3B+ / 3B / 3A+ / Zero / Zero W/ Zero 2W / CM3 / CM4 |
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X630 | HDMI to CSI-2 | 1080p50fps | Yes, but I2S wiring or the X1300-A2 accessory board is necessary | Toshiba TC358743XBG | 30 x 42.4 mm | 15-PIN FPC (pitch 1.0 mm) | 4B / 3B+ / 3B / 3A+ / Zero W / Zero 2W |
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X1300 | HDMI RX to MIPI CSI-2-TX | 1080p60fps | Yes, but I2S wiring or the X1300-A2 accessory board is necessary | Toshiba TC358743XBG | 30 x 37.5 mm | 22-PIN FPC (pitch 0.5 mm) | Pi 5B / CM4 IO |
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X1301 | HDMI RX to MIPI CSI-2-TX HDMI loop output | 1080p60fps | Yes | Toshiba TC358743XBG | 57 x 85.5 mm | 22-PIN FPC (pitch 0.5 mm) | Pi 5B / 4B / 3B / 3B+ / 3A+ / CM4 IO |
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X1300-A2 | I2S audio accessory board for X630 / X1300 | 1080p60fps | This is a I2S audio accessory board | - | 57 x 65 mm | - |
Hardware Parameters
- Model: C790
- Compatible with Raspberry Pi 5/4B/3B+/3B/Zero/Zero W/Zero 2W/CM4/CM3
- HDMI input: supports up to 1080P60Hz on Raspberry Pi (Only when use with CM4 / Pi 5)
- HDMI to CSI-2 bridge chip:Toshiba TC358743XBG
- 4 CSI-2 channels & clock (Pi 4 and Pi Zero only support 2 lan, max 1080P@50fps, and CM4 / Pi 5 can support 4 lan, max 1080P@60fps)
- The CSI-2 interface, with 15 pin FPC seat, spacing 1.0 mm, is located on the front of the C790 module.
- The CSI-2 interface, with 22 pin FPC seat, spacing 0.5 mm, is located on the back of the C790 module.
- Size: 30 x 45 mm
- Power supply:3.3V
- Weight: 10g
Packing List
- 1 x C790 HDMI to CSI-2 Module
- 1 x 15cm Length FPC 15pin 1.0mm cable (for Pi 4B / 3B / 3A)
- 1 x 15cm Length FPC 22pin 0.5mm cable (for Pi 5B / Pi Zero / Zero W / Zero 2W / CM4 / CM3)
- 1 x I2S cable (15cm length)
User Manual
- Due to the absence of hardware encoding on the Pi 5B, the software usage instructions for Pi platforms are currently divided into two sections: Pi 5B configuration and configuration for other Pi platforms.
- In platforms such as Zero, Zero 2, Pi 3B, Pi 4B, etc., there is a reference for testing HDMI to CSI module demo: C779-Software or Raspberry pi official forum post
- Pi 5B platforms HDMI to CSI module test demo reference: CSI Manual on Pi 5
- Refer to: https://wiki.blicube.com/blikvm/en/hdmi-csi-i2s/
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