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DAC38RF83: FIR filter coefficients

Scott Greeley1
Intellectual 585 points
Part Number: DAC38RF83

Hello,

Is it possible to change the FIR filter coefficient values of the DAC38RF83, from those listed in Table 35 of the datasheet?    I was hoping there might be some undocumented register(s) for doing this.      We'd like to change the filter's stopband characteristics.

thanks,
Scott

  • +1
    TI__Guru 66104 points

    Hi Scott,

    The FIR coefficients in the logics are fixed and cannot be modified. Adding the ability to modify the coefficients will increase the complexity of the logic, and raising the power consumptions and reducing maximum speed. 

    -Kang