Mouse IC Paw3805ek-Cjv1 and Lens IR LED Track on Glass Mouse Sensor

General Description
The PixArt PAW3805EK-CJV1 is an optical sensor which is
optimized for infrared (IR) LED based wireless mouse
application. It has high accuracy navigation ability that
enables navigation virtually on any flat surface, including
the transparent glass. The low power architecture and
automatic power management make it suitable for
power-sensitive application such as a wireless mouse.
PAW3805EK-CJV1 is capable of high-speed motion
detection up to the velocity of 40 inches/sec and 10g on
non-glass surfaces, 20 inches/sec and acceleration of 5g
on glass surface. In addition, it has an on-chip oscillator
and a built-in programmable LED current driver. In order
to achieve the best tracking performance, it is
recommended to match the sensor with L029-LSI optical
lens.
Key Features
Virtually track on any flat surface, including glass
Ultra-low power consumption
Interface : 3-wire SPI (NCS, SCLK, SDIO)
16-bit motion data length for X-movement and Y-
movement
Resolution up to 3000cpi with ~26cpi per step
Motion detection interrupt output
Built-in Low Power Timer (LPT) for Sleep1/ Sleep2/
Sleep3 mode
Programmable downshift time and sampling time
during sleep modes
Adaptive frame rate control for power saving during
moving at different speeds
Programmable LED Current Source (5-bits with
1.2mA/step) to provide LED with constant current
An infrared (IR) LED is integrated in the package