Esd Guidelines For Usb (Tbc) - Sierra Wireless AirPrime HL7802 Hardware Integration Manual

AirPrime HL7802 Hardware Integration Guide
A typical schematic including USIM detection is provided below.
UIM1_VCC
UIM1_RESET
UIM1_CLK
Figure 4-1: EMC and ESD Components Close to the USIM
Sierra Wireless recommends using diode ESDALC6V1-5P6 ESD for D100.

4.4.2 ESD Guidelines for USB (TBC)

When the USB interface is externally accessible, it is required to have ESD protection on
the USB_VBUS, USB_D+ and USB_D- signals.
Rev. 1 June 2020
UIM1_VCC
UIM1_DATA
1 VCC
2 RST
3 CLK
4 C4
9 SW_A
VGPIO
10
D100
UIM1_CLK
UIM1_RESET
UIM1_DET
12pF
GND 5
VPP 6
I/O 7
C8 8
1KΩ
SW_B 10
CN100
UIM1_DATA
UIM1_DET
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