ADV3220 Supply

Question

Hi, 
 I need to mux a video signal that is all positive (0V to 2V). 
 It is possible use ADV3220 with supply 0/5V or we must use Dual supply and so -5V/5V? 
 regards, 
 Dario

FormerMember · Accepted Answer

The specifications for the ADV3220 are with +-5V rails. 
 It is also spec'd at 0-12V rails but the real problem here is the video signals would have to be AC coupled and biased to ~mid-point for proper operation. This is a more complex circuit. 
 The device is not spec'd with 0-5V rails. 
 It is best to keep the video signal DC coupled so the black level is 0V. And best to run the ADV3220 with +-5V rails. 
 If you need to generate 5V DC then you might look at devices like the LTC1983 
 https://www.analog.com/en/products/ltc1983.html#product-overview 
 Pay attention to the output ripple voltage and you should be good.)

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ADV3220 Supply

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