Printed Circuit Board - XMOS XS1-L2 Hardware Manual

USB Audio 2.0 Reference Design, XS1-L2 Edition Hardware Manual (1.6) 18/32

15 Printed Circuit Board

The PCB is a 1.6mm four layer design in a XMOS XS1-G Development Kit form factor
with dimensions of 180 x 120mm. It is made from FR4 ( r = 4.5) material and
finished in immersion gold. The mounting holes are 3.2mm in diameter.
Signal stack up is as follows:
Top signal
Ground plane
Power plane
Bottom signal
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