标签: ak8973

       AK8975C是AKM公司推出的一款三轴电子罗盘IC，AK8975C中集成了多个磁传感器分别用于检测X轴、Y轴和Z轴的磁感以及用于处理信号的运算电路。该电子罗盘主要应用于便携式设备（PDA或手机）的GPS功能模块上。 AK8975C的采购信息如下： AK8975C的主要功能特性包括： 1、Si-monolithic 3-axis geomagnetic sensor LSI 2、Measurement range：± 1200 T 3、Functions - Time-sharing sequencer controls automatic measurement of 3-axis magnetism - Built-in ADC for magnetometer data output - 13-bit digital output (resolution: 0.3 T) - Individual adjustment data, already stored before shipment at AKM, such as sensitivity of sensor - Serial interfaces (separated from main power supply, low voltage is acceptable) · I 2 C-bus interface (can be operated at Standard- or Fast-mode) · 4-wire SPI - Operation modes: Power-down, Single measurement and ROM access - Magnetic sensor overflow monitor function - Power on reset circuit - Interrupt function for measurement data ready - No clock input required (built-in oscillator) - Automatic power-down function 4、Operating temperature range: -30°C to +85°C 5、Operating supply voltage range: Vdd = +2.4V to +3.6V, Vid = +1.65V to Vdd 6、Current consumption - 3-axis magnetism measurement (ave.)： 350 A (typ.) at 8 Hz repetition rate - Power-down：                      3 A (typ.) 7、Packages - AK8975：     16-pin QFN          (4.0 4.0 0.75 mm) - AK8975B/C：  14-pin WL-CSP, BGA  (2.0 2.0 0.6 mm) AK8975C的功能框图如下： AK8975C的管脚图如下：