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GC5016 Input and Output Freq Range in Transceiver Mode

Tom Hurst
Prodigy 60 points


Hello,

I'm looking to cover from 5MHz to 500MHz at a min using subsampling.

I wanted to check on the 5016. I like the features but did not see any specs other than the clock freq. If the GC5016 is not suitable could you make a recommendation please. I do not need a large device.

The protocols will be digital using I/Q channels. Also any recommendations on converters would be great. I have a few I'm looking at but open to ideas. 

I was considering using a UWB THA to level off the input but the cost may be a problem with that.

Thank you for your time.

Tom Hurst

  • 0
    Prodigy 60 points

    No input from TI Staff?

  • 0
    TI__Mastermind 37500 points

    Hello

    The GC5016 can be operated in real or complex DDC input, and DDUC output modes.  The digital sample rate is from 40 - 160Mhz clock rate, the decimation or interpolation

    are based on the number of channels, and the CIC, PFIR ratios.

    There is a TSW4100 which is a digital repeater example EVM, that has 2 or 4 channels, it has examples for the first, second, and third nyquist zones using an ADC with a 160Msps rate,  so the direct ADC to DDC downsampling covers 0-80, 80-160, 160-240Mhz real input with appropriate ADC nyquist filters.

    Most people that want to cover a 500Mhz range would have direct or real down conversion in several stages.  You can lookup the schematic or purchase the TSW4100

    as an initial EVM example.  The Windows XP Matlab GUI software will generate the DDC filters, and send the program file to the EVM.  Please contact Ken Chan (kenchan@ti.com) for more information.  The cmd5016 software is customized for this EVM. 

    Regards,

    Radio Joe

     

  • 0 in reply to Radio-Joe
    Prodigy 60 points

    Thank you. I sent Ken a email. The info you provided helps. Thanks again!