IWR1443BOOST: Increase number of ADC samples per chirp

Prudhvi Sagar

Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1443, IWR1642

Hello,

The default config for "High Accuracy Demo" for IWR1642 has number of ADC samples set to 512. Can I increase it to 1024 as it was supported for IWR1443? What is the maximum Ramp end time IWR1642 can support?

Regards,

Prudhvi Sagar

over 6 years ago

0 Akash Gondalia over 6 years ago

TI__Guru 50240 points

Hi Prudhvi,

I'll need some time to look into this, we should have an answer for you sometime next week.

Cheers,

Akash

0 Akash Gondalia over 6 years ago

TI__Guru 50240 points

Hi Prudhvi,

Only 512 chirps are supported because of increased processing latency due to DSP.

The Maximum Ramp End time is dictated such that the chirp bandwidth remains less than 4 GHz.

Cheers,

Akash

0 Prudhvi Sagar over 6 years ago in reply to Akash Gondalia

Genius 3785 points

Hello Akash,

Is there anyway I can increase the number of chirps. I am unable to achieve high sampling time which is leading to achieve low bandwidth. DSP processing latency is not an issue for me as my read rate is low.

Regards,

Prudhvi Sagar

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IWR1443BOOST: Increase number of ADC samples per chirp