User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R18 Advance Information System description
Page 27 of 206
Figure 15 roughly describes the current consumption profile of SARA-G300 and SARA-G310 modules when the
EXT32K input pin is fed by the 32K_OUT output pin provided by these modules, when power saving is enabled.
The module is registered with the network, automatically enters the low power idle-mode and periodically wakes
up to active-mode to monitor the paging channel for paging block reception.
20-30 ms
IDLE MODE ACTIVE MODE IDLE MODE
Active Mode
Enabled
Idle Mode
Enabled
0.44-2.09 s
IDLE MODE
20-30 ms
ACTIVE MODE
Time [s]
Current [mA]
100
50
0
Time [ms]
Current [mA]
100
50
0
RX
Enabled
DSP
Enabled
Figure 15: VCC current consumption profile versus time of the SARA-G300 and SARA-G310 modules (with the EXT32K input pin
fed by the 32K_OUT output pin provided by these modules), when registered with the network, with power saving enabled:
the low power idle-mode is reached and periodical wake up to active-mode are performed to monitor the paging channel
For the modules’ detailed VCC current consumption values in low-power idle-mode or in cyclic idle/active-mode
(module registered with 2G / 3G network with power saving enabled), see SARA-G3 series Data Sheet [1] and
SARA-U2 series Data Sheet [2].