Convert HDMI signal acquisition into CSI signal and I2S audio signal.
Raspberry pi is a very popular device in the open source world.In many application scenarios, we need to collect the video and audio of HDMI input device.At present, there are some modules in the market that can convert HDMI signal to CSI signal rather than video and audio signal separately at the same time.Besides they are very expensive, and not easy to install on raspberry pi.Therefore, I design a module that can convert HDMI signals to video and audio signals separately at the same time, the most important is, it is not expensive. Its name is C780.
C780 module is divided into C780A and C780B versions according to the number of CSI-2 channels.C780A supports 2 CSI-2 channels, up to 1080P50fps HDMI input.And C780B supports 4 CSI-2 channels, up to 1080P60fps HDMI input.
The documentation of this project.The hardware parameters of C780 and how to useC780 to use video and audio in raspberry pi are introduced in detail.
C780A
- HDMI input: supports up to 1080P50Hz on raspberry pi(Limited by the number of CSI-2 channels)
- HDMI to CSI-2 bridge chip:Toshiba TC358743XBG
- 2 CSI-2 channels & clock
- CSI-2 interface: 15 pin FPC seat, spacing 1.0 mm
- Size: 30 x 65 mm (unbroken PCB size); 30 x 45 mm (PCB size after breaking)
- Install:6 x M2.5
- Power supply:3.3V
- Weight: 9g
C780B
- HDMI input: supports up to 1080P60Hz on raspberry pi
- HDMI to CSI-2 bridge chip:Toshiba TC358743XBG
- 4 CSI-2 channels & clock
- CSI-2 interface: 22 pin FPC seat, spacing 0.5 mm
- Size: 30 x 65 mm (unbroken PCB size); 30 x 45 mm (PCB size after breaking)
- Install:6 x M2.5
- Power supply:3.3V
- Weight: 9g
C780A test:https://www.youtube.com/watch?v=ecqyINoiHNQ
C780B test:https://www.youtube.com/watch?v=nc-hwPT2Uak&t=15s
Purchase：C780
Purchase：C779