Other Parts Discussed in Thread: TLK100, TIDA-010046
Tool/software:
Dear TI,
We are in the process of designing a product which uses DP83825I. The product is an iteration of an earlier product which used TLK100.
When we performed EMC testing on the TLK100 based product, our design was initially very marginal against class B radiated emissions limits in the typical 100M ethernet frequency range 50-100MHz. TI were able to provide some register settings for this device which helped to reduce the emissions by a few dB giving us a pass with more margin.
We are soon going to test the DP83825I in a EMC test facility. In our own-lab tests we see the emissions from DP83825I being slightly higher than the TLK100 design.
Time in an EMC test house is expensive, and they are often booked up many months in advance. We like to be prepared by having strategies in place to reduce emissions for key components if we suffer fails or marginal passes.
As such, my question, is whether there are register settings for DP83825I (similar to TLK100) which can be used to reduce radiated emissions of 100M.
Thank you,
Ben
