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LPC54608 XTAL PCB layout

Question asked by 実 奥山 on Oct 21, 2018
Latest reply on Oct 23, 2018 by soledad

I'm planning to make 4 layer board of LPC54608.

The thickness is t1.6.

I attach the outline of athe board.

L1 is circuit  layer.

L2 is GND layer.

L3 is power layer.

L4  is circuit  layer.

I'm planning to empty L2,L3 under XTAL.

But I don't know how to do L4.

Should I put GND pattern  in L4?

Or should I empty L4?

Please instruct me.

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