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DAC3162EVM- Output frequency lower Limit (Urgent)

Ju
Prodigy 30 points
Other Parts Discussed in Thread: DAC3162, DAC3162EVM

Hello Guys,

I was working with DAC3162EVM along with an FPGA and i tried to Output a DC value with no success. i assume this is because the Output is transformer coupled but i am not sure. can any one confirm to me if this is the case and i simply can't get the EVM to Output a DC value? in this case what is the lowest frequency i can work with? I took a look at the DAC3162 datasheet and i can see the dac is able to Output DC current. Does anyone know a way to get DC out of the EVM's J2 and J3 outputs?

Best regards to anyone who gives me a quick resolution to my conundrum.

  • 0
    TI__Mastermind 29220 points

    Hi,

    The physical design package zip file is available on the TI web page for the EVM at http://www.ti.com/tool/DAC3162EVM.  In that file are the schematics and bill of materials spreadsheet for the design, as well as layout information.  The front page of the schematics list a Minicircuits ADTT1-1+ transformer, which on the Minicircuits datasheet lists a 3dB bandwidth of 0.3MHz through 300 MHz.   The schematics also show the optional components that could be installed if you wanted to do some soldering and remove the transformer.

    Regards,

    Richard P

  • 0 in reply to Richard Prentice
    Prodigy 30 points

    HI Richard,

    Thankyou for the reply. it seems like my assumption was right.