ON launches OIS solution for smartphone camera modules
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ON Semiconductor has introduced what it says is the industry's highest resolution optical image stabilisation (OIS) ic.
Designed for use in smartphone camera modules, the LC898111AXB-MH combines both the controller and driver functionality necessary for dealing with OIS.
ON claims it increases shutter speed, enabling precise suppression control of camera shaking to be achieved.
The LC898111AXB-MH is optimised to allow implementation of pan/tilt function indispensable for walk and take situations. The output of the ic's integrated pwm driver lowers power consumption as well as reduces the effect of noise on image quality.
The device has numerous built in digital and analogue signal processing mechanisms. These include a two channel position sensing circuit, a gyro filter interface circuit and lens servo circuit.
The position sensing circuit contains a hall amp circuit, constant current d/a converter, gain control operational amplifier and 12bit a/d converters for each channel.
The gyro filter interface circuit is fully compatible in both analogue and digital signals. Both are adjustable through the I2C and SPI bus interfaces, allowing configuration when connecting with various gyros and actuators.
