GNSS Module Series
LC76G_Series_EVB_User_Guide 23 / 33
6 Measuring Power Consumption
6.1. Power Consumption at Different Stages
M
odule power consumption is measured in four stages: acquisition and tracking (including almanac
update), tracking (almanac update is over), upon entering ALP mode and Backup mode.
Acquisition and tracking (including almanac update): 0 s to 12.5 min
Tracking (almanac update is over): > 12.5 min
Entering ALP mode
Entering Backup mode
12.5 min
Acq uisition an d Tr acki n g
(including almanac update)
Tr acki ng
(alm ana c u pda te is ove r)
Time
Enter Backup ModeEnter ALP Mode
VCC
V_BCKP
0
12.5 min
Current
Fi
gure 11: Power Consumption at Different Stages
The EVB works normally. After entering the tracking mode, the module enters the ALP mode when the
$PAIR732,1*21 command is sent. Then, the power consumption of the ALP mode can be measured.
Record the average value after the power consumption of the ALP mode is stable. For more information,
see document [3] protocol specification.