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I bought the AD8333 evaluation board. When applying 40khz as a reference (4LO) and 40.1khz to channel 1, and observing the I output of channel 1, nothing happens.

Question asked by nb123456 on Nov 20, 2016
Latest reply on Nov 23, 2016 by nb123456

I bought the AD8333 evaluation board. When applying 40khz as a reference (4LO) and 40.1khz to channel 1, and observing the I output of channel 1, nothing happens.

 

In fact, it seems like the reference input (4LO) in not affecting anything. I can shut it down and I still get the same output. We thought we bought a defected board, so we bought another one, and we still get the same result.

 

We want to do I/Q demodulation on the input signal, in order to lower it to a basenband (from 40khz to 0-3 khz), and it doesn't seem to work...

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