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LIS3MDL Datasheet(PDF) 14 Page - STMicroelectronics

No. de pieza LIS3MDL
Descripción Electrónicos  Digital output magnetic sensor: ultra-low-power, high-performance 3-axis magnetometer
PDF  33 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LIS3MDL Datasheet(HTML) 14 Page - STMicroelectronics

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Application hints
LIS3MDL
14/33
DocID024204 Rev 4
4
Application hints
Figure 5. LIS3MDL electrical connections
4.1
External capacitors
The LIS3MDL requires one external capacitor (C1 = 100 nF) connected between pin 4 and
GND.
The device core power supply line (Vdd) needs one high-frequency decoupling capacitor
(C3 = 100 nF, ceramic) as near as possible to the supply pin, and a low-frequency
electrolytic capacitor (C2 = 1 μF). All the voltage and ground supplies must be present at the
same time to have proper behavior of the IC (refer to Figure 5).
The functionality of the device and the measured magnetic field data is selectable and
accessible through the I2C / SPI interfaces.
The functions, the threshold and the timing of the interrupt pin (INT) can be completely
programmed by the user through the I2C / SPI interfaces.
When I2C or 3-wire SPI is used, the SDO/SA1 pin must be connected to Vdd_IO or GND.
4.2
Soldering information
The LGA package is compliant with the ECOPACK®, RoHS and “Green” standard.
It is qualified for soldering heat resistance according to JEDEC J-STD-020.
Land pattern and soldering recommendations are available at www.st.com.
Vdd
C 3 =100 nF
GND
C 2 =1 µF
4
1
55
77
11
12
Vdd_IO
CS
C 1 =100 nF
(TOP VIEW)
10
SDO/SA1
DRDY
8
INT
6
9
2
3
TOP VIEW
DIRECTION OF
DETECTABLE
MAGNETIC FIELDS
X
Z
Y



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