SARA-G450 - System integration manual
UBX-18046432 - R08
System description
Page 20 of 143
C1-Public
1.5.1.4
VCC current consumption in fixed active mode (+UPSV disabled)
Power saving configuration is disabled by default, or it can be disabled using the appropriate AT
command (see the u-blox AT commands manual
, +UPSV AT 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.
roughly describes the current consumption profile of the SARA-G450 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
0.47-2.12 s
Paging period
Time [s]
Current [mA]
100
50
0
Time [ms]
Current [mA]
100
50
0
RX
Enabled
DSP
Enabled
Figure 9: VCC current consumption profile versus time of the SARA-G450 modules, 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
For the detailed modules VCC current consumption values in fixed active mode (module registered
with 2G network with power saving disabled), see the SARA-G450 data sheet
