SARA-G3 series - System Integration Manual
UBX-13000995 - R06 Objective Specification System description
Page 34 of 218
1.5.1.4 VCC current consumption in fixed active-mode (power saving disabled)
Power saving configuration is by default disabled, or it can be disabled using the appropriate AT command
(refer to
u-blox AT Commands Manual
[2], AT+UPSV command). When power saving is disabled, the
module does not automatically enter idle-mode whenever possible: the module remains in active-mode.
The module processor core is activated during active-mode, and the 26 MHz reference clock frequency is
used.
Figure 9Figure 9 roughly describes the current consumption profile of SARA-G300 / SARA-G310 modules
when the EXT32K input pin is fed by external 32 kHz signal with characteristics compliant to the one
specified in
SARA-G3 series
Data Sheet
[1], or by the 32K_OUT output pin provided by these modules,
when power saving is disabled. The module is registered with the network, active-mode is maintained, and
the receiver and the DSP are periodically activated to monitor the paging channel for paging block
reception.
ACTIVE MODE
60-120 mA
0.47-2.12 s
Paging period
Time [s]
Current [mA]
100
50
0
Time [ms]
Current [mA]
100
50
0
3-5 mA
60-120 mA
RX
Enabled
20-40 mA
DSP
Enabled
3-5 mA
3-5 mA
Figure 9: VCC current consumption profile versus time of the SARA-G300 / SARA-G310 modules (with the EXT32K input pin fed by proper
external 32 kHz signal or by 32K_OUT output pin), when registered with the network, with power saving disabled:
the active-mode is always held, and the receiver and the DSP are periodically activated to monitor the paging channel
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