Dear Experts,
In our ethernet device, by introducing series resistors of value 22
ohms in the Tx / Rx signals we noticed reduction in the emission levels.
Reduction of emission in the ethernet harmonics (175, 200, 225, 250, 275,
300 & 350 MHz) is logical. At the same time we notice reduction of emission
in SDRAM clock harmonics also. (multiples of 59.9 MHz). Why & how this
happens and what to infer from this is not clear to us.
Sincerely
K.Balasubramanian
Project Leader - Hardware.
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