Product Info

D
WM1001C Datasheet
©
Decawave Ltd 2017 Subject to change without notice Version 1.40C Page 13
5 T
R
ANSMIT AND
R
EC
EIVE
P
O
WER
C
O
NSUMPTION
T
he following Figures give power profiles for the DWM1001C on a DWM1001-DEV PCB when used for Two Way
Ranging, see Figure 2. Peak values are given.
F
igure 2 shows an example of the power consumption of a DWM1001C tag running the factory loaded firmware.
T
he tag is in low-power mode, and two-way ranging with 3 anchors. The deep-sleep current occurs while the tag
is sleeping with only the RTC and accelerometer active.
O
nce awake, the tag transmits at its allocated time in the TDMA-slotting and awaits the anchors responses. This
can be observed as 1 transmission followed by 3 receives, repeated once. After this is completed, the tag spends
some time computing its location, before returning to sleep. The total time awake is dependent on the number of
anchors within range of the tag. For more details on the system operation, see the DWM1001C System Overview
document[9].
F
igure 2: power consumption during Two Way Ranging