• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 566 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AWR1642: AWR1642 HARDWARE DESIGN

xingwen liao
Prodigy 10 points
Part Number: AWR1642


AWR1642 short-radar design problem

 

My power and reset system is

 

Power and reset system with no power up sequence control

 

My problem is :

The AWR1642 can not work normally, it like that the AWR1642 not exit the reset state absolutely.

After power up , we use metal probe to click the TPS389033 reset pin, the AWR1642 can work normally!

 

My question:

  1. The power up sequence of AWR1642 has specific requirement or not ?
  2. The 3.3V supply is right or not;

 

I see the power up sequence of AWR1642 in the datasheet is

  • 0
    TI__Guru 58035 points

    Hello Xingwen,

    As indicated in the figure , the nRST signal to the AWR device should be released only after all the supplies to the AWR device are stable.

    In your configuration how are you ensuring that ?

    Regards,

    Vivek