Yamaha develops world’s smallest tri-axial geomagnetic sensor IC for smartphones

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Yamaha Corp has developed the world’s smallest tri-axial geomagnetic sensor integrated circuit for use in smartphones and tablet PCs, etc. Yamaha said it will begin shipping samples in mid-September.

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The YAS532 is the third in a line of Yamaha’s geomagnetic sensor series. The YAS532 is at 1.5mm by 1.5mm in size, the world’s smallest tri-axial geomagnetic sensor integrated circuit. Normally, sensor integrated circuits are made by packaging a CMOS circuit chip and multiple sensor elements.

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With this method, the elements and chip need to be wired and assembled within the package, which would make it difficult to shrink the size of a geomagnetic sensor integrated circuit. The use of Yamaha’s proprietary technology, however, enabled smaller sizes through a monolithic structure that generates the sensor elements and CMOS circuits all on the same chip.

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The YAS532, compared to the YAS530 which has been sold until now, has a 56% smaller size, with a 150% increase in dynamic range for further precision and with a lower consumption of power.

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As with the existing product, it is provided with auto-calibration software that uses proprietary algorithms, and drivers for the various OS types, which will be made available in a timely fashion, and while responding to customer needs with technical support of the implementation of geomagnetic sensor integrated circuits, we assist in reducing the design load on our customers.

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