![Quectel Smart Module Series Скачать руководство пользователя страница 53](http://html1.mh-extra.com/html/quectel/smart-module-series/smart-module-series_hardware-design_3780024053.webp)
Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 52 / 106
USB2_DP
USB2_DM
Module
DP
DM
VBUS
GND
100 nF
4.7
μF
AW3605DNR
SW
VIN
EN
VOUT
VOUT
GPIO
`
1
μH
VBAT
10
μF
1
μF
GND
10K
USB2_VBUS
USB2_VBUS
USB2_SS_RX_M
USB2_SS_RX_P
USB2_SS_TX_M
USB2_SS_TX_P
C3
C4
C5
C6
RX-
RX+
TX-
TX+
L1
C1
R1
C2
C8
C9
D1
D2
D3
Figure 16: USB Type-A Interface Reference Design (USB2 for Host Mode)
3.9.3. Design Principles
Table 11: USB Trace Length Inside the Module
USB2_SS_RX_M
J2-100
AI
USB2 3.1 channel 1
super-speed receive (-)
USB2_SS_RX_P
J2-102
AI
USB2 3.1 channel 1
super-speed receive (+)
Pin No.
Signal
Length (mm)
Length Difference (P - M)
J2-117
USB1_DM
39.59
-0.15
J2-119
USB1_DP
39.44
J2-123
USB1_SS1_TX_M
22.37
0.90
J2-125
USB1_SS1_TX_P
23.27
J2-118
USB1_SS1_RX_M
19.53
0.64
J2-120
USB1_SS1_RX_P
20.17
J2-111
USB1_SS2_TX_M
19.65
0.31
J2-113
USB1_SS2_TX_P
19.96
J2-114
USB1_SS2_RX_M
15.36
-0.50
J2-112
USB1_SS2_RX_P
14.86