Accelerometer; Magnetometer - Nokia Lumia 1320 Service Manual
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Accelerometer
Accelerometer is a geometric type component which is used for example to determine the device
orientation. Accelerometer measures acceleration along three axes (x, y, z) and can be configured either to
generate an inertial wake-up interrupt signal when a programmable acceleration threshold is exceeded
along one of the three axes (x, y, and z), or to detect a free-fall event. Each axis has its own sensor and
those can measure positive and negative directions.
The 3D accelerometer (U3600) sensor is connected to MSM via two GPIOS (44 and 45) and the I2C bus.
Power is provided from VREG _LVS2 (1.8V) and VREG_L9 (2.85V) from the PMIC.
It has the following features:
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1.8V compatible IOs
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Low power consumption
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±2g/±4g/±6g/±8g dynamically selectable scale
●
I
C/SPI digital output interface
2
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Embedded self-test
●
10000g high shock survivability
●
Pb free/RoHS compliancy
Magnetometer
Compass is 3-axis electronic compass IC with high sensitive Hall sensor technology. Incorporates magnetic
sensors for detecting terrestrial magnetism in the X-axis, Y-axis, and Z-axis, It is suitable for map heading
up purpose in GPS-equipped cell phone to realize pedestrian navigation function.
The E-compass (U3602) sensor is connected to MSM via two GPIOS (44 and 45) and the I2C bus. Power
is provided from VREG _LVS2 (1.8V) and VREG_L9 (2.85V) from the PMIC.
It has the following features:
●
3-axis magnetometer device suitable for compass application
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Built-in A to D Converter for magnetometer data out
Sensitivity: 14-bit 0.6 μT/LSB (typ.)
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Measurement range : ±4900 μT
●
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I
C bus interface compliant with Philips I2C specification Ver.2.1
2
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Average current consumption at 100 Hz repetition rate: 2.4 mA (typ.)
Power-down: 3 μA (typ.)
●
Page 146
Figure 47 Accelerometer
NOKIA INTERNAL USE ONLY
Copyright © 2013 Nokia. All rights reserved.
RM-994/ RM-995/ RM-996
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