Hello
Can anyone tell me what kind of low pass filtering is used prior to the ADC's in the IWR1443 . Does the filter cut off frequency change with ADC sample rate?
I have an application that might see large targets outside the normal range of operation. Aliasing could be a problem
Thanks
Hi Richard,
The filtering performed by the base-band chain is targeted to provide better than 60 dB anti-aliasing attenuation for any frequency that can alias back into the pass-band. Yes filters cut-off frequency scales according to sampling rate so at to provide better than 60 dB anti-aliasing attenuation.
Below is the example of Anti-aliasing Attenuation at 5 Msps (Complex 1X Rate) Configuration. Please refer to the curve with HPF configuration.
Thanks and regards,
CHETHAN KUMAR Y.B.
