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.

DP83848YB: 10Base-T Ethernet qualification testing - masks violation issue

Part Number: DP83848YB

I performed several 10Base-T testing with Teledyne Lecroy ENET QualiPHY test setup (9.2.0.3 build 277958 core version) of both a custom developed board with your DP83848YB and an evaluation board from an european microcontroller manufacturer, which use the DP83848CVV instead.

In all the tests I experienced the same failure in the "Template - Internal MAU" Normal and Inverted measurements, which refer to 802.3 14.3.1.2.1 requirements, with roughly the same ratio of 50% passing repetitions and the same entity of masks violation, in order of a few tens millivolts.

Are you aware of any limitation in the performance of those DP83848 parts w.r.t. these specifications, when operating at 10 Mbits?

In several past projects we successfully used the same devices at 100 mbits and we never found any issue in the qualification testing phase, with the same test instruments and setups (but taking in account that different tests are performed by QualiPHY for 100 Mbits standards).

Thanks in advance