HDMI to CVBS solution description

The basic specifications of this program are as follows:

Input signal support:

HDMI: 720x480 720x576 1280x720 60Hz 1280x1024 60Hz 1280x1024 60Hz 1360x768 60Hz 1600x1200 60Hz 1680x1050 60Hz 1920x1080 60Hz

Output signal support:

CVBS: PAL720x576 NTSC720x480

Connector function definition: (subject to the latest PCB document of Chipav)

P2: CVBS output

SW1: HDMI input

D5: Power 5V input

P1: HDMI input

Instructions:

Before the PCB solution board is powered on, first plug the HDMI signal source into the P1 interface through the HDMI cable, and then connect to the P2 interface through the CVBS cable.

Finally, plug in the 5V power supply, and the board can light up and work normally.

When the power is on, the output resolution (PAL/NTSC) can be switched through SW1.

Chipav provides sets of films:

This solution consists of three main chips, and the process is as follows:

SIL9293: Decode HDMI signal and output to CV2880.

N76E003: The controller of the overall solution.

CV2880: Scale the resolution of the input signal and output the CVBS signal.