AK8973

ASAHI KASEI www.DataSheet4U.com [AK8973] =Preliminary= AK8973 3-axis Electronic Compass 1. Features … … … … 3-axis electronic compass IC Optimal built-in electronic compass for mobile phones and handy terminals High sensitivity Hall sensors are integrated. Functions Built-in 8-bit ADC Built-in amplifier for sensor signal amplification Built-in 8-bit DAC for sensor signal offset compensation Built-in EEPROM for storing individual adjustment values Built-in temperature sensor 8-bit digital output Serial interface: I2C bus interface (supporting the low-voltage specification) Automatic power-down function Interrupt function for measurement data ready Built-in master clock oscillator Operating temperatures: -30°C to +85°C … … … Operating supply voltage: +2.5V to +3.6V Low current consumption/measurement time: Power-down: 0.2μA typ. Magnetic sensor driving: 6.8mA/12.6ms Package: 16-pin QFN package: 4.0mm×4.0mm×0.7mm … MS0561-E-01 -1- 2007/01 ASAHI KASEI www.DataSheet4U.com [AK8973] 2. Overview AK8973 is a geomagnetism detection type electronic compass IC. The small package of AK8973 integrates magnetic sensors for detecting geomagnetism in the X-axis, Y-axis, and Z-axis, and arithmetic circuit for processing the signal from each sensor. AK8973 outputs four data in total as 8-bit digital values respectively: 3-axis magnetic sensor measured values and temperature sensor read value. By processing the magnetic sensor measured values w...