This part is a kind of semiconductor called AD5823.

Function of this product has 10-Bit VCM Driver.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

ADI Confidential 10-Bit VCM Driver for Autofocus AD5823/AD5823-1 FEATURES 10-bit VCM driver for autofocus ARC and ESRC enabled for fast autofocus capture Available in 2 × 3 array, 1.1 mm2 WLCSP 2-wire (I2C-compatible), 1.8 V serial interface 10-bit resolution DAC 100 mA output current sink Integrated current sense resistor 2.3 V to 3.6 V power supply Guaranteed monotonic over all codes Power-down to 5 µA maximum Internal reference Ultralow noise preamplifier Power-on reset APPLICATIONS Camera phones Camera/image modules Lens autofocus Shutter/NDF/iris control Camera enabled PDA Web cameras GENERAL DESCRIPTION The AD58231 and AD5823-1 are single, 10-bit DACs with 100 mA output current sink capability and integrated Actuator Response Control™ (ARC™) technology. ARC is a revolutionary [ ... ]

AD5823 PDF Datasheet Download