THS7376: Question of Unused THS7376 CVBS Signal Connection

Wayne Chen (ex FAE)

Part Number: THS7376

Hi Sirs,

Would you pls advise how to terminate the unused THS7376's CVBS input and output pins? Customer found 10 degree C body temperature up with grounded output (pin14). Should we AC terminated its unused input pin and leave output pin open?

Thank you and Best regards,

Wayne Chen
05/22/2018

over 5 years ago

0 Rohit Bhat over 5 years ago

TI__Genius 15975 points

Hi Wayne,

For unused THS7376's CVBS input and output pins, it is possible to AC terminate the unused input pin to GND and add a series 75-ohm termination at the output to be left open.

Best Regards,
Rohit

0 Wayne Chen (ex FAE) over 5 years ago in reply to Rohit Bhat

Guru 15950 points

Hello Rohit,

Thanks for your recommendation. Can we connect 10pf Cin at unused CVBS input and 75R Rout at unused CVBS output?

Best regards,

Wayne Chen

05/23/2018

0 Rohit Bhat over 5 years ago in reply to Wayne Chen (ex FAE)

TI__Genius 15975 points

Hi Wayne,

I would recommend to add a 75-ohm resistor in-between the GND node and the 10pF cap. Also, I would make the R3 as 150-ohms.

Best Regards,
Rohit

0 Wayne Chen (ex FAE) over 5 years ago in reply to Rohit Bhat

Guru 15950 points

Thank you Rohit...Wayne Chen

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THS7376: Question of Unused THS7376 CVBS Signal Connection