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ADV7842 Pinout questions

Question asked by rlicnker on Mar 26, 2013
Latest reply on Jul 30, 2014 by GuenterL

Hello

I've got some questions about a board design for an ADV7842.

 

1. Can I use two Semtech RClamp0504P to ESD protect an VGA input (Ain1, 2, 3, SDA, SDL, Hsynch1 and Vsynch1) ? With these component can I still follow the ADV7842 TYPICAL CONNECTION DIAGRAMS for these inputs ?

 

2. What should I do with pin test8?

In the datasheet it is stated that we should connect it to GND while in the UG-214 it says it should be tied to 3.3V.

(same problem with test5)

 

3. The UG-214 says that powerdown1 should be tied to +3.3V but in the ADV7842-7511 evalboard schematics the pin seems to be floating.

 

Thanks

Robin

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