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1442 Signal I/O Volume

Question asked by mtbrider405 on Mar 25, 2011
Latest reply on Mar 28, 2011 by BrettG

Hey guys, I have been messing with the analog IO on the 1442 EVAL board and I am confused about the IO signal levels.

 

I input a 1k sine wave at 1v p-p and rout it back out to an output and measure it, the signal is almost half as powerful. ie dropped to 0.5v p-p.

 

Can anyone explain why it is cut in half? And solutions to overcome this? Linear Gain factor of 2 inline?

 

 

Thanks,

Jason 

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