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AWR1642BOOST: Inquiry Regarding Reducing the Range and Use of Longer Cables for Vital Sign Data Collection

Deepu Kumar
Prodigy 195 points
Part Number: AWR1642BOOST

Hello,

Kindly provide your suggestion for the below questions:

  1. Due to the unavailability of a large room, I need to collect data for vital sign applications in a small room. I am searching for a method to reduce the range to a maximum of 2 meters using the chirp parameters setting.
  2. Can I utilize longer Ethernet cables than the ones provided with the EVM? If yes, what should be the specifications and maximum length?
  3. Similarly, can I use longer micro USB cables than the ones provided with the EVM? And if so, what should be the maximum length?

Best

Arjun

  • 0
    TI__Guru 58035 points

    Hello Arjun,

    1) You can discard the range bins beyond 2m in your processing. If you do not wish to do that, you can limit the ADC sampling to 120% of the If frequency that corresponds to 2m. For example , in your chirp config if 2m distance corresponds to 2Mhz IF frequency, then you can limit the ADC sampling rate to 2,4 Msps (assuming you are using complex 1x mode).

    2) I assume you are referring to the ethernet cable connected to the DCA1000 board? You can use a longer ethernet cable. 10m should not be an issue.

    3) Using longer USB cable might be an issue. You could try 1.5m long cable if its of good quality (with ferrite choke, good shielding etc.).

    Regards,

    vivek