• 0

JTAG SMT2 Bypass cap and power sequencing requirment



Q1. The supply voltage 'VDD=3.3V and VREF=2.5V' is being used. Is there any specific power sequencing requirement for VDD and VREF?

Q2.Is it necessary to have bypass capacitor to VDD and VREF? OR is it provided inside the jtagsmt2 module? If not what is the recommended bypass cap value?


Thanks and Regards


Share this post

Link to post
Share on other sites

3 answers to this question

Recommended Posts

  • 1


The engineer let me know that it is probably better to power VDD first, but they have not experienced any issues when VREF was powered first instead. As for the second question, the module has bypass capacitors on each rail, so no external bypass capacitors are needed.


Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now