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AD-FMCOMMS3-EZB power only

Question asked by Quamstar on Mar 26, 2015
Latest reply on Mar 27, 2015 by Quamstar

Hey,

 

actually i working on a performace test where is just need to power the FMCOMMS3-EZB and data line are not in use. Regarding to the fmc spec of the development board there are 3.3 Volt, 3.3 Volt AUX and VADJ which is in a range of 1.7 Volts to 2.5 Volts.

 

PIN TID-EVAL

PIN FMC

SUPPLY VOLTAGE

1

H40

1.7  to 2.5 Volt

1

G39

1.7  to 2.5 Volt

21)

D1

3.3 Volt1)

2

D32

3.3 Volt

2

D36

3.3 Volt

2

D38

3.3 Volt

2

D40

3.3 Volt

2

C39

3.3 Volt

 

PIN D1 of the FMC Connector is connected to the EN inout of the LDO and need to be powered with 3.3 Volt.

 

In my case i wanted to design a very easy eval-board which power the given pins of the FMC connector of the FMCOMMS3-EZB. All other pins are not connected so in a open state. This brings me to the questions if the open state will cause any damages? Is it better to pull all other pins to ground? Again, for my test i dont need any functionality of this board, i just have to ensure that all devices on the FMCOMMS3-EZB are powered.

 

Hope you can help me

 

Thanks and regard

Jan

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