paparazzi/paparazzi-hardware — Issue #4: Change the magnetometer charge pump capacitor
Author: esden
Created: 2011-12-15 16:10:31+00:00
State: open

From Christophe: datasheet of magnetometer says the buffer capacitor is drained at over 1 Ampere during the measurement. The buffer cap should have a MAX ESR of 10mR. This does not exist in 0402 format. It slightly transforms the magnetic measurement. With a scope you can measure the voltage drop.

Conclusion change the footprint of the capacitor to one that can be obtained with the required spec.