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AK09915C Datasheet(PDF) 1 Page - Asahi Kasei Microsystems |
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AK09915C Datasheet(HTML) 1 Page - Asahi Kasei Microsystems |
1 / 42 page [AK09915] 015006484-E-02 2016/7 - 1 - 1. General Description AK09915 is 3-axis electronic compass IC with high sensitive Hall sensor technology. Small package of AK09915 incorporates magnetic sensors for detecting terrestrial magnetism in the X-axis, Y-axis, and Z-axis, a sensor driving circuit, signal amplifier chain, and an arithmetic circuit for processing the signal from each sensor. Self-test function is also incorporated. From its compact foot print and thin package feature, it is suitable for map heading up purpose in GPS-equipped smart phone and tablet to realize pedestrian navigation function. 2. Features Functions: 3-axis magnetometer device suitable for compass application Built-in A to D Converter for magnetometer data out 16-bit data out for each 3-axis magnetic component Sensitivity: 0.15 µT/LSB (typ.) Serial interface I 2C bus interface Standard, Fast and High-speed modes (up to 2.5 MHz) compliant with Philips I 2C specification Ver.2.1 4-wire SPI Operation mode Power-down, Single measurement, Continuous measurement and Self-test DRDY function for measurement data ready Magnetic sensor overflow monitor function Built-in oscillator for internal clock source Power on Reset circuit Self-test function with internal magnetic source Built-in Noise Suppression Filter (NSF) Selectable sensor drive Low power drive / Low noise drive Built-in magnetic sensitivity adjustment circuit 32 FIFO data buffer Operating temperatures: -30˚C to +85˚C Operating supply voltage: Analog power supply +1.7V to +3.6V Digital Interface supply +1.65V to analog power supply voltage Current consumption: Power-down: 3 µA (typ.) Measurement: Average current consumption at 100 Hz repetition rate Low power drive: 0.9 mA (typ.) Low noise drive: 1.8 mA (typ.) Package: AK09915C 14-pin WL-CSP (BGA): 1.6 mm 1.6 mm 0.5 mm (typ.) AK09915 3-axis Electronic Compass |
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