Hi,
-
I’m also measuring with PKK2 at 3.7V connected to the battery pins.
-
I explicitly set the XL and Gyro to power down mode (odr set to 0 at CTRL1_XL and CTRL2_G) and I do see the expected increase in current to ~160µA when setting XL to 12.5Hz, indicating the running accelerometer.
-
This is my understanding as well, although I do not have a single LSM6DS3TR lying around to check…
-
That may also be, also there seems to be a problem with the buck converter, which I also see in my measurements when I go near/below 3.5: xiao-nrf54l15-with-a-coin-battery
I assumed that to be a problem only for specific power ranges?
As I have not setup any component running near 2.5kHz it indeed has to be some internal switching freuqency of either the IMU, the PDM or the Buck converter
- Here is the measurement in detail, with the 2.5kHz peaks visible. The IMU is in sleep mode, which produces the expected peaks at 12.5Hz as seen below as the areas more dense.
