CVBS Multiplexer

Neelam singh

Other Parts Discussed in Thread: LMH6570, LMH6572, OPA3875, OPA875

I need an analog video Mux (Quad 2:1 ) and one 2:1 for anaog video multiplexing. Is PI5V330 and LMH6570 are suitable for my application ?

any other suggestion ?

or LMH6572 and LMH6570 are suitable ?

Regards

Neelam

over 8 years ago

0 Hooman Hashemi over 8 years ago

TI__Mastermind 22825 points

Hi Neelam,

TI does not have a high speed analog quad 2:1 MUX. Here is the parametric table of MUX's:

The LMH6572 is a triple 2:1 MUX, but that is one short of what you need. It would work well with a CVBS signal provided you ensure that you comply with the device input voltage range (CMIR of +/-2.5V typical with +/-5V supplies). AC coupling is a good choice here, if your application allows it.

To get 4 channels, the alternative is to go with four LMH6570's (single 2:1). Or, one LMH6572 (for 3 channels) + one LMH6570 for four total channels.

Regards,

Hooman

0 Neelam singh over 8 years ago in reply to Hooman Hashemi

Expert 1035 points

Can I use OPA3875 and OPA875 for this design ( for muxing analog video-CVBS)

0 Hooman Hashemi over 8 years ago in reply to Neelam singh

TI__Mastermind 22825 points

Hello,
Yes the OPA3875 (triple) and OPA875 (single) can also perform the Muxing of CVBS video. For a quad configuration, you need more devices, of courses.

Regards,
Hooman

Amplifiers

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CVBS Multiplexer