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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LSM303DLMTR датащи(PDF) 15 Page - STMicroelectronics |
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LSM303DLMTR датащи(HTML) 15 Page - STMicroelectronics |
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15 / 38 page  LSM303DLM Application hints Doc ID 018725 Rev 1 15/38 6 Application hints Figure 4. LSM303DLM electrical connection - recommended for I2C fast mode 6.1 External capacitors The C1 and C2 external capacitors should have a low SR value ceramic type construction. Reservoir capacitor C1 is nominally 4.7 µF in capacitance, with the set/reset capacitor C2 nominally 0.22 µF in capacitance. The device core is supplied through the Vdd line. Power supply decoupling capacitors (C4=100 nF ceramic, C3=10 µF Al) should be placed as near as possible to the supply pin of the device (common design practice). All the voltage and ground supplies must be present at the same time to obtain proper behavior of the IC (refer to Figure 4). The functionality of the device and the measured acceleration/magnetic field data is selectable and accessible through the I2C interface. The functions, the threshold, and the timing of the two interrupt pins (INT 1 and INT 2) can be completely programmed by the user through the I2C interface. DIRECTIONS OF DETECTABLE MAGNETIC FIELDS DIRECTIONS OF DETECTABLE ACCELERATIONS RES RES GND (TOP VIEW) 4 1 8 VDD SDA_M NC SCL_M SET1 RES DRDY_M LSM303DLM SA0 1 7 28 22 21 15 C1 C2=0.22uF GND C1=4.7uF Vdd_IO Vdd C4 = 100uF C3 = 10uF Y X Z 1 Y X Z 1 NC GND Vdd_IO Rpu Electrical connection Rpu=10kOhm Vdd_IO Rpu Rpu=10kOhm AM09240V1 |
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