VDM Video Decryption Equipment
1:Principle of video decryption:
We perform AD (analog-to-digital) conversion with the CVBS video signal received by the receiver, decrypt the converted digital signal through FPGA, reprocess the video image, and then output it for DA (analog-to-digital) conversion to convert it into standard CVBS and output it to the display as shown in Figure (1)
Principle diagram as below:

Figure 1
2:Hardware connection:
1:Descrambling connection

Each pin definition:
1:DC GND
2:DC 5-15V
3:Video GND
4:Video in(connect with Rx video out)
5:Video GND
6:Video out(connect with display/VR)
7:TTL TXD
8:TTL GND
9:TTL RXD