Questions about how to use Analog & Digital crosspoint switchs


My customer is deveoping a Video signal switch using ADN4605,ADN4604,ADV3227 and ADV3205 like below diagram.


For this, he asks some questions to ADI.

Please refer below questions and let me know your opinions.

Q1) Can I put CVBS and H/V sync of RGB to ADV3205 at the same time for switching outputs like above diagram?

Q2) Would you let me know how to handle NC pins and unused pins of ADN4605,ADN4604,ADV3227 and ADV3205?

Q3) How to set Vcc and VEE value of ADV3227 and ADV3205?


Please advise me.







  • 0
    •  Analog Employees 
    on Jan 12, 2015 12:08 AM

    Hi, Se-woong.

    For ADV3205, will you use different channels for CVBS, and H/V sync of RGB? You can't use both in just one channel and as far as I know ADV3205 do not accept H/V sync as input. I'll still verify this.

    For the NC pins of ADV3205 and ADV3227, just leave them floating or unconnected. 

    For the supplies of both ADV3227 and ADV3205, AVcc should be +5V, AVee should be -5V and DVcc should be +5V. These are all typical operating voltages.

    For the digital crosspoint switches, might help you.