1. 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 .

2. Deserializer
DS90UB948TNKDTQ1
Interface Connector
TOP Layer 1
Deserializer Input Section Layout

3. 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 : mm
FPD_R0_N Trace length : mm.
Deserializer Input Section Layout

4. Power Layer 3
Deserializer Input Section Layout

5. Bottom Layer 4
Deserializer Input Section Layout

6. TOP Layer 1
Deserializer Output Section Layout

7. GND Layer 2
Deserializer Output Section Layout

8. Power Layer 3
Deserializer Output Section Layout

9. Bottom Layer 4
Deserializer Output Section Layout