Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

  • State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 240 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

Original question:

PCM1789 - Running with no VCC?

PCM1789: Power sequence

Mochi
Genius 3985 points
Part Number: PCM1789
Other Parts Discussed in Thread: PCM1803A, PCM1748

Hello,

Our customer is trying to replace a DAC to PCM1789 in current market situation.

They have found existing application note as attached which described Power sequence limitation between DVdd and AVdd caused by ESD cell connection.

It seems +3.3v/+5V old days converter products are subjected.

However PCM1803A red fount was added to the list at the last moment, our customer wondering how is PCM1789.

Could you provide us up to date products list and clarify PCM1789 does not have this limitation.

 

Regards,

Mochizuki

PCM1xxx_Power_Sequencing_AppNote.pdf