Document
[AK09918]
AK09918
3-axis Electronic Compass
1. General Description
AK09918 is 3-axis electronic compass IC with high sensitive Hall sensor technology. Small package of AK09918 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 Smart phone 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 I2C bus interface Standard and Fast modes compliant with Philips I2C specification Ver.2.1 Operation mode Power-down, Single measurem.