AK09916_015007392-E-00_地磁传感器.pdf

Confidential [AK09916] AK09916 3-axis Electronic Compass 1. General Description AK09916 is 3-axis electronic compass IC with high sensitive Hall sensor technology. Small package of AK09916 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 2  I C bus interface 2 Standard and Fast modes compliant with Philips I C specification Ver.2.1  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 magnetic sensitivity adjustment circuit  Operating temperatu