Datasheet

Application hints LSM303D
20/52 DocID023312 Rev 2
5.3 Digital Interface power supply
This digital interface, dedicated to the linear acceleration and to the magnetic field signal, is
capable of operating with a standard power supply (Vdd) or using a dedicated power supply
(Vdd_IO).
5.4 Soldering information
The LGA package is compliant with ECOPACK
®
, RoHS and “Green” standards.
It is qualified for soldering heat resistance according to JEDEC J-STD-020.
Leave “Pin 1 Indicator” unconnected during soldering.
Land pattern and soldering recommendations are available at www.st.com/mems.
5.5 High-current wiring effects
High current in wiring and printed circuit traces can be the cause of errors in magnetic field
measurements for compassing.
Conductor-generated magnetic fields add to the Earth’s magnetic field creating errors in
compass heading computations.
Keep currents higher than 10 mA a few millimeters further away from the sensor IC.