Quectel M35 User Manual page 23

SIM1_
29
DATA
SIM1_
28
RST
SIM1_
20
PRESENCE
SIM_
31
GND
SIM2_
18
VDD
SIM2_
17
CLK
SIM2_
16
DATA
SIM2_
25
RST
RF Interface
PIN NAME PIN NO. I/O
RF_ANT 39
PCM Interface
PIN NAME PIN NO. I/O
M35_User_Manual
I/O SIM1 data
O SIM1 reset
I SIM1 card detection.
SIM ground
Power supply for SIM2
O
card
O SIM2 clock
I/O SIM2 data
O SIM2 reset
DESCRIPTION
I/O RF antenna pad
DESCRIPTION
Confidential / Released
GSM/GPRS Module Series
VOLmax=
0.15×SIM1_VDD
VOHmin=
0.85×SIM1_VDD
VOLmax=
0.15×SIM1_VDD
VOHmin=
0.85×SIM1_VDD
VILmin=0V
VILmax=
0.25×VDD_EXT
VIHmin=
0.75×VDD_EXT
VIHmax=
VDD_EXT+0.2
The voltage can be
selected by software
automatically. Either
1.8V or 3V.
VOLmax=
0.15×SIM2_VDD
VOHmin=
0.85×SIM2_VDD
VOLmax=
0.15×SIM2_VDD
VOHmin=
0.85×SIM2_VDD
VOLmax=
0.15×SIM2_VDD
VOHmin=
0.85×SIM2_VDD
DC
CHARACTERISTICS
Impedance of 50Ω
DC
CHARACTERISTICS
M35 User Manual
pad to SIM card
holder.
COMMENT
COMMENT
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