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ST Enables Shake-Free Photo Shooting with 2-Axis MEMS Gyroscope

Google 우선 소스Published2017.12.15 09:58
Its small size allows for simplified circuit design.

STMicroelectronics has launched the new compact 2-axis MEMS gyroscope L20G20IS. Utilizing the device's smaller size and higher performance allows for space to be freed up for new handset features.

The L20G20IS, the latest solution in ST's family of highly integrated Optical Image Stabilization (OIS) devices, measures only 2.0 x 2.0 x 0.7 mm. This allows for an additional 1.29 mm² of board space compared to the previous L2G2IS (2.3 x 2.3 mm), enabling the reduction of camera module size and the simplification of circuit design. Additionally, it achieves an excellent suppression ratio of 6 dB, providing superior optical correction to prevent camera shake when taking photos on smartphones.

It maintains excellent accuracy even when soldered to the latest ultra-thin substrates, which are increasingly used in the production of flat cases where the camera part does not protrude, as the thickness is typically only 0.2mm or 0.3mm. It also eliminates the effects of substrate deformation when the smartphone is moved, maintaining Zero-Rate Level (ZRL) specifications to ensure consistent measurements for image stabilization.

In addition, the overall noise performance has been significantly improved to 3.8 mdps/√Hz RND (Rate Noise Density), and the phase delay can be configured from 20Hz to 1°, and ZRL supports ±5dps, enabling clear photos to be taken with a smartphone camera. Both sensitivity and temperature stabilization have been improved without reducing the full-scale range up to ±200dps. The integrated temperature sensor provides best-in-class compensation, enabling users to capture sharp images even during long exposure times.

Various performance enhancements provided by ST's cutting-edge MEMS device technology have been applied. These improvements include a boot time of less than 70ms, which is up to 30% faster than the existing L2G2IS, and an operating current of only 1.4mA, which can reduce power consumption by half. Additionally, it features power off and power-saving modes to further reduce battery consumption for smart-camera software.
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