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Qustion about AWR1843

Other Parts Discussed in Thread: AWR1843

I have some questions about AWR1843.

1. AD conversion mode
The AWR1843 probably only works in complex 1x mode. 1)
Is that idea correct?

2. IF band frequency
The sampling frequency in complex 1x mode is stated as 12.5 Msps. 1) In this case, does the maximum IF frequency have to be within 6.25 MHz in order to satisfy the sampling theorem?

3. Data output from Digital Front End
It seems that the number of bits can be converted when outputting data from DFE, but 2) The resolution of AD conversion of AWR1843 is 12 bits. 1)

When passing data to L1d, I think that you have to make it 16 bit and pass the data. How do you convert 12 bit to 16 bit?

I'm sorry I have a lot of questions.

1) https://www.ti.com/lit/ds/symlink/awr1843.pdf?ts=1626402925763&ref_url=https%253A%252F%252Fwww.google.com%252F p30 5.7 RF Specifition

2) IWR1xxx Radar Digital Front End.pdf p5 2.3 DFE Second Stage Decimation Filter

(Please refer to the attached file)

1348.IWR1xxx Radar Digital Front End.pdf