Data Sheet

O8723UE DATESHEET
www.ofeixin.com 6 OFEIXIN TECHNOLOGY LIMITED
5 Reference Design
5.1 Reference schematic
Note: 1, Please add 22uF cap for VCC_3V3. 2, For USB 2.0 differential signal, requires 90 ohm
impedance. 3, For PIN2 and PIN3 RF IO trace, keep 50 ohm impedance.
2, When the version is single antenna, ANT0 is WiFi and Bluetooth shared antenna, and
ANT1 is NC. ANT0 is WiFi antenna and ANT1 is Bluetooth antenna when is dual antenna
version.
5.2 External Antenna
When the customer selects an external antenna, the external antenna selected must meet
the parameter requirements specified ,Impedance 50Ω