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IWR1642BOOST: Inquiry about IWR1642BOOST

Jae Ho Yu
Prodigy 60 points
Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1642,

IWR1642

Dear Sir/Madam,

Good day.

I appreciate for your answer about below questions.

(1) The demo CCS projects from TI Resource Explorer are not downloadable. It either stuck at the preprocessing phase or give error reports for win32 platform (but actually we have win64). Any solution?
(2) Is the "Tx Power" indicated in the manual the maximum power of the radar or not?
(3) To achieve the best velocity resolution (in short-range of a few meters), what is the maximum chirp time of IWR1642? And the max number of chirps is 512?
(4) If the transmitter is not omni-directional, what is the beam angle?
(5) Is it safe to direct IWR1642 radar to human body or brain?

Regards,

Yu

  • 0
    TI__Guru 50240 points
    Hi Yu,


    (1) The demos on TI-REX (Labs) are currently for the previous SDK1.0 and not the current SDK1.1. You will need to revert your SDK version to be able to work with these. Changes are quickly being made to port the Labs over to the SDK1.1 but they are not yet available.
    (2) As per the IWR1642 Datasheet the maximum Tx Power is 12 dBm.
    (3) Velocity resolution can be improved with the ProfileCfg parameter Delay Time. The maximum number of ADC Samples is not 512, this is just what is supported by the Out of Box Visualizer. I'd recommend taking a look at the Chirp Database on the TI-REX: dev.ti.com/.../ Many of these chirps are a bit too sophisticated to work properly on the Visualizer but have still been tested to work on the device itself.
    (4) The azimuth field of view is +/- 60 degrees, so a total of 120 degrees. Since the IWR1642BOOST only has 2 Tx Antenna at the same elevation there is not field of view in that direction.
    (5) This is a very good question. There have been no instances where TI has claimed this is unsafe but the ICNIRP (International Commission on Non-Ionizing Radiation Protection) limit for Power Density is 1mW/cm2. At 77GHz with EIRP of 20dBm (for our EVM), incident power density is much smaller than 1mW/cm2 at few centimeters. EIRP is highly dependent on customer system design, and it is customer’s responsibility to test the end product as per any applicable regulations.


    Cheers,
    Akash