• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 402 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.

TPS54360 has about 90MHz,16dB common mode noise to input, is irrelevant to the switch frequency

gong merry
Prodigy 10 points

the switch frequency is 2.3MHz, then 92M,94.3,96.6MHz has exceed 12dB, if switch frequency is 443k, then 88.6MHz,89MHz,etc will exceed 12dB, there is an ground plane behind the DCDC chip, and PCB layout refer datasheet guidline,we use common mode choke ,there is no noise to power line. if we do not use common mode choke, how to filter the noise, thanks.