IIS2MDC datasheet(21/40 Pages) STMICROELECTRONICS

部件名	IIS2MDC

功能描述	High-accuracy, ultra-low-power, 3-axis digital output magnetometer

PDF	40 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

21 / 40 page

DocID030986 Rev 1

21/40

IIS2MDC

Application hints

5.1

Soldering information

The LGA package is compliant with the ECOPACK®, RoHS and “Green” standards.

It is qualified for soldering heat resistance according to JEDEC J-STD-020.

Land pattern and soldering recommendations are available at www.st.com.

5.2

High-current wiring effects

High current in wiring and printed circuit traces can be culprits in causing errors in magnetic

field measurements for compassing.

Conductor-generated magnetic fields will add to the Earth’s magnetic field, leading to errors

in compass heading computation.

Keep currents higher than 10 mA a few millimeters away from the sensor IC.

5.3

Startup sequence

The following general-purpose sequence can be used to configure the device:

Write CFG_REG_A = 80h // Enable temperature compensation

Write CFG_REG_C = 01h // Mag data-ready interrupt enable

IIS2MDC 数据表(PDF) 21 Page - STMicroelectronics