Quectel EG91 Series Hardware Design page 22
Lte standard module seriesv
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Also See for EG91 Series:
- Hardware design (98 pages) ,
- Hardware design (109 pages) ,
- Hardware design (108 pages)
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USB_DP
9
USB_DM
10
(U)SIM Interfaces
Pin Name
Pin No.
USIM_GND
47
USIM1_VDD
43
USIM1_DATA
45
USIM1_CLK
46
EG91_Hardware_Design
USB differential
IO
data bus (+)
USB differential
IO
data bus (-)
I/O
Description
Specified ground for
(U)SIM card
Power supply for
PO
(U)SIM card
Data signal of
IO
(U)SIM card
Clock signal of
DO
(U)SIM card
LTE Standard Module Series
EG91 Hardware Design
Compliant with USB
2.0 standard
specification.
Compliant with USB
2.0 standard
specification.
DC Characteristics
For 1.8V (U)SIM:
Vmax=1.9V
Vmin=1.7V
For 3.0V (U)SIM:
Vmax=3.05V
Vmin=2.7V
I
max=50mA
O
For 1.8V (U)SIM:
V
max=0.6V
IL
V
min=1.2V
IH
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V (U)SIM:
V
max=1.0V
IL
V
min=1.95V
IH
V
max=0.45V
OL
V
min=2.55V
OH
For 1.8V (U)SIM:
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V (U)SIM:
V
max=0.45V
OL
V
min=2.55V
OH
Require differential
impedance of 90Ω.
Require differential
impedance of 90Ω.
Comment
Connect to ground of
(U)SIM card
connector.
Either 1.8V or 3.0V is
supported by the
module automatically.
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