Cavli Wireless C100QM - 3.7.1 USIM Card Reference Circuit

Cavli Wireless C100QM/C10QM Hardware Manual
45
VOL
0
0
0.45
17
USIM_
RST
D
O
USIM
card reset
VOH
VD
D-
0.45
3.05
USIM_VDD:3.0V
/1.8V
VOL
0
0
0.45
3.7.1 USIM card reference circuit
The C100QM/C10QM module does not come with a USIM card slot. Users need to design
a USIM card slot on their own interface board.
The USIM card interface reference circuit is as follows:
Figure 3-16 USIM design circuit diagram
✧ The USIM interface cable is recommended to use ONSEMI's SMF15C device for ESD
protection. The peripheral circuit components should be placed close to the card
holder. The SIM card holder is close to the module layout.
✧ The USIM card circuit is susceptible to radio frequency interference and does not