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H350 LGA Serials Module Hardware User Manual Page 21 of 37
TX slot
DCS1800 PCL=10
GSM voice -
1Rx slot
TX slot
1
67.7
4
109.6
IWCDMA-RMS
WCDMA
Band1
24dBm
442.0
mA
0dBm
131.2
-24dBm
120.6
-50dBm
118.7
Band8
24dBm
421.9
0dBm
128.6
-24dBm
121.8
-50dBm
120.2
5.1.3
VIO
VIO is power supply for the digital portion of the circuit inside of the module; it can be used for indicating signal
of the module. VIO can be used as a reference level of the module digital signal.
Minimum Value
Recommended Value
Unit
VIO @working
1.773
1.8
1.827
V
5.1.4
VRTC
VRTC supplies power for RTC clock inside the module, can be connected to external RTC battery.
Minimum Value
Recommended Value
Unit
1.71
1.8
1.89
V
VRTC input voltage
(RTC is working)
0.5
1.8
1.89
V
VRTC input current
(RTC is working)
1.0
uA