Doc Title Wireless Smart Audio Module-A98 Datasheet
Number
WMB20180504
Document No.: WMB20180504 Page 17 of 23
2.5. Power on Sequence
2.6 USB OTG Port
Please follow the design rule below to populate the USB host interface:
Item Parameter
Signal Group USB
Topology Differential Pair Point-to-Point
Reference Plane Ground Referenced
Characteristic Trace Impedance (Zo) 90 Ω ±10%
Trace Width 4 mils
Serpentine Spacing (center to center) 8.5 mils