This part is a kind of semiconductor called AS5147P.

Function of this product has 14-Bit On-Axis Magnetic Rotary Position Sensor.

Manufacturers : ams

Image and pinout :

Some of the text within the PDF file :

General Description Figure 1: Added Value of Using the AS5147P Benefits High speed application Easy to use – saving costs on DSP AS5147P 14-Bit On-Axis Magnetic Rotary Position Sensor with 12-Bit Binary Incremental Pulse Count and for 28krpm High Speed Capability The AS5147P is a high-resolution rotary position sensor for high speed (up to 28krpm) angle measurement over a full 360 degree range. This new position sensor is equipped with a revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency. The robust design of the device suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5147P and to program non-volatile [ ... ]

AS5147P PDF Datasheet Download