PAW3101DB Datasheet, PDF (3/22 Pages) Pixart Imaging Inc. – CMOS OPTICAL MOUSE SENSOR

PixArt Imaging Inc.
PAW3101DB
2. Block Diagram and Operation
LED
LED
DRIVER
POWER ON
RESET
CMOS
IMAGE
SENSOR
CMOS Optical Mouse Sensor
VDD
VSS
5V POWER
SERIAL
INTERFACE
SCLK
SDIO
SERIAL
INTERFACE
DIGITAL
SIGNAL
PROCESSOR
CONTROL REGISTER OSCILLATOR
VREF
VOLTAGE
REFERENCE
OSCIN
OSCOUT ^RESONATOR
Figure 3. Block Diagram
The PAW3101DB is a CMOS-process optical mouse sensor with DSP integration chip that serves as a non-
mechanical motion estimation engine for implementing a computer mouse. It is based on new optical navigation
technology, which measures changes in position by optically acquiring sequential surface images (frames) and
mathematically determining the direction and magnitude of movement. The mouse sensor is in a 8-pin optical
package. The current X and Y information are available in registers accessed via a serial port. The word "mouse
sensor," instead of PAW3101DB, is used in the document.
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PixArt Imaging Inc.
E-mail: [e-mail]
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V3.1 May. 2008