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ADV7181C thermal dissipation

Question asked by vinodhodal on Aug 31, 2015
Latest reply on Aug 31, 2015 by GuenterL

Hi,

 

This is regarding current consumption of IAVDD which is given 99mA for CVBS@54Mhz (Only ADC0 is powered up).

Datasheet reference: REV E of ADV7181C.

 

Does that mean if we are using 3 ADC channel for CVBS than total current consumption will become 3*99mA?


In our application max ambient temp is 65C. Considering Rth JA =45.4 C/W as per datasheet, temp rise is too high.


Please help to calculate total power dissipation for this IC with multiple ADC active channel.


regards

Vinod

 

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