amplitude modulation DAC 5640r

[ksalexander]

I'm currently trying to generate an amplitude modulation signal using the onboard DAC on the 5640r.

My method of doing this is to configure the DAC to single tone mode, and then to use my digital data of 1's and 0's to operate the DAC_0_TxEnable using T/F in the FPGA.  Essentially turning the tone on and off like an analog transistor AM circuit would work.  So far, i have not been successfully in getting any output from the board.  Will this method work, or will i have to approach this task another way?

[Robert_F]

Hello,

I would suggest using the shipping examples as a good resource to understand how the 5640r operates.  I would suggest using the single tone example as a good starting point.  You will notice that the write waveform subvi is going to take in IQ data.  If convert you signal to an AM modulated signal using the Modulation toolkit, you will notice that the data still has to be IQ data format.  I would recommend trying to convert your modulated signal into IQ data then use that data to generate your AM signal.