LB-Link BL-M8723DU1 - 5. Peripheral Schematic Reference Design

6
12
DM
High-Speed USB D- Signal
12
DP
High-Speed USB D+ Signal
14
GND
Grond
15
N
No attributes
16
WL_DIS#
This Pin Can Externally Shutdown the RTL8723DU
WLAN function when WL_DISn is Pulled Low. When this pin
deasserted,USB interface will be disabled.
The WLAN Radio-off function with host interface
remaining connected.
17
BT_DIS#
This Pin Can Externally Shutdown the RTL8723DU
BT function when BT_DISn is Pulled Low. This pin can
also support the BT Radio-off function with host
interface remaining connected.
18
N
No attributes
19
HST_WAKE_WL
General Purpose Input/Output Pin
20
WL_WAKE_HST
General Purpose Input/Output Pin
21,22
N
No attributes
5. Peripheral Schematic Reference Design
Circuit reference pictures were designed
Note: 1.Pls reserve a “pi” circuit for antenna matching.
2. The RF circuit needs to keep 50 Ω impedance.
3. The USB differential pair needs to keep 90 Ω impedance.
4. reserved filter capacitance for 3.3 V power input