ALPS begins production of 3-axis geomagnetic sensor for electronic compass
Geomagnetic sensors enable a global positioning system (GPS) must be highly accurate in order to provide a reliable azimuth reading as well as have low current consumption for use with a limited power supply.
The HSCDTD004A geomagnetic sensor, with its high-precision magnetic element optimized to increase sensor output, generates 30% less noise than the earlier model. This has improved azimuth detection accuracy by approximately 40% and helps to reduce calibration time. Low current consumption (200 uA) is also realized.
Geomagnetic sensors in mobile phones and smartphones are increasingly susceptible to the effects of speakers and other components that generate magnetic fields because more and more functional components are being incorporated into these devices and PCBs are becoming smaller. The HSCDTD004A has a measurement range extended to ±1.2mT, contributing to enhanced set layout flexibility within magnetic field environments. The product is compatible with Inter-Integrated Circuit (I2C) and Serial Peripheral Interface (SPI).
Mass production of the HSCDTD004A geomagnetic sensor commenced in May 2011.
Visit ALPS Electric Europe at www.alps.com.
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