HDMI to VGA 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:

VGA: 1280x720 60Hz 1280x1024 60Hz 1280x1024 60Hz 1360x768 60Hz 1600x1200 60Hz 1680x1050 60Hz 1920x1080 60Hz

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

P4: Power input 5V

P1: HDMI input

S1: Output resolution switch

P2: VGA output

P3: Audio output

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/P3 interface according to your needs.

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

Chipav provides sets of films:

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

EP9351: Decode HDMI signal and output to CV2880.

STM8S005K6: The controller of the overall scheme.

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