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AWR1243: IF bandwidth settings firmware and the DFE

Vladimir Kolinko1
Prodigy 240 points
Part Number: AWR1243

Hi, a few questions regarding baseband frequency settings of AWR1243 chip: 

1) What is the firmware bandwidth of the baseband IQ signal channels in front of the ADC (cutoff frequency, LPF order, plot of the frequency response if available) ?

2) When the ADC sampling rate is programmed into the chip, does the chip automatically sets the digital filter chain (DFE) cutoff at the Nyquist  frequency, or it has to be programmed by the user? 

3) Which TI PDF guide/reference  describes the above in details?

Thank you,

Vladimir Kolinko.

  • 0
    TI__Genius 15005 points

    Hi Vladimir,

    1) I'm afraid we do not disclose this information.

    2) In Complex 1X Mode, the maximum usable IF frequency is 90% of the programmed sampling rate, and for other modes, it is 45%

    3) I'm afraid we do not currently share any documentation describing this in detail.

    Best Regards,

    Anand