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GMM-U1 Datasheet, PDF (15/36 Pages) List of Unclassifed Manufacturers – GPS Module
GlobalTop Technology
Gmm-u1 Data Sheet
15 Ver. V0G
2.7 Absolute Maximum Ratings
The voltage applied for VCC should not exceed 6VDC;
Parameter
Power Supply Voltage
Backup battery Voltage
Symbol
VCC
VBACKUP
Min.
Typ. Max. Unit
3.2
3.3
5.0
V
2.0
3.0
4.3
V
2.8 Operating Conditions
Parameter
Operation supply Ripple Voltage
RX0 TTL H Level
RX0 TTL L Level
TX0 TTL H Level
TX0 TTL L Level
RTCM TTL H Level
USB D+
USB D-
RTCM TTL L Level
Current Consumption @ 3.3V
Backup Power Consumption@ 3.0V
Shut-down Power Consumption
(via enable pin)
Condition
-
VCC=3.3V
VCC=3.3V
VCC=3.3V
VCC=3.3V
VCC=3.3V
Standard
Standard
VCC=3.3V
Acquisition
Tracking
25°C
25°C
Min.
-
2.1
0
2.1
0
2.1
-
-
0
43
32
-
-
Typ.
-
-
-
-
-
-
-
-
-
48
37
10
15
Max.
50
VCC
0.9
2.8
0.8
VCC
-
-
0.9
53
42
-
-
Unit
mVpp
V
V
V
V
V
V
V
V
mA
mA
uA
uA
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