Observed CE/RE Failures in the Display Product CE(Conducted Emission )

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Presentation transcript:

Observed CE/RE Failures in the Display Product CE(Conducted Emission ) Failure observed in 90MHz range RE(Radiated Emission ) Failure Seen in 896MHz . With the near field probe test observed this emission is coming From the LVDS input section from Interface connector to Deserializer Input . ** x929 Serializer is using and the clock frequency is 90MHz from serializer . Deserializer to LCD clock is 45MHz .

Deserializer DS90UB948TNKDTQ1 Interface Connector TOP Layer 1 Deserializer Input Section Layout

Deserializer Input Section Layout GND Layer 2 Is this split plane is okay for The differential signal ?. We are controlling impedance Of 100Ω by matching the trace length. FPD_R0_P Trace length :45.737 mm FPD_R0_N Trace length :45.577 mm. Deserializer Input Section Layout

Power Layer 3 Deserializer Input Section Layout

Bottom Layer 4 Deserializer Input Section Layout

TOP Layer 1 Deserializer Output Section Layout

GND Layer 2 Deserializer Output Section Layout

Power Layer 3 Deserializer Output Section Layout

Bottom Layer 4 Deserializer Output Section Layout