Camera module and electronic device having same

An electronic device comprising:

• a housing;
• a lens assembly comprising at least one lens aligned along an optical axis;
• and
• an auto-focus (AF) actuator to move the lens assembly within the housing, wherein the AF actuator comprises:
• a first AF magnet disposed on a first side of the lens assembly,
• a second AF magnet disposed on a second side of the lens assembly opposite to the first side,
• a first AF coil disposed to face the first AF magnet,
• a first position sensor configured to detect a first position of the first AF magnet,
• a second AF coil disposed to face the second AF magnet,
• a second position sensor configured to detect a second position of the second AF magnet,
• a first AF driver integrated circuit (IC) including first memory configured to store a first calibration value and a first driving circuit configured to control a current applied to the first AF coil based on the first position of the first AF magnet detected via the first position sensor,
• a second AF driver IC including second memory configured to store a second calibration value and a second driving circuit configured to control a current applied to the second AF coil based on the second position of the second AF magnet detected via the second position sensor to move the lens assembly in a direction of the optical axis, the second memory being separate from the first memory,
• wherein the first driving circuit and the second driving circuit are configured to allow opposite ends of the AF actuator to have substantially a same stroke,
• wherein the current applied to the second AF coil is different from the current applied to the first AF coil,
• wherein the first AF driver IC is disposed inside a periphery of the first AF coil and configured to control the first driving circuit based on the first calibration value stored in the first memory, and
• wherein the second AF driver IC is disposed inside a periphery of the second AF coil and configured to control the second driving circuit based on the second calibration value stored in the second memory.