PAN301A Datasheet, PDF (3/24 Pages) List of Unclassifed Manufacturers – CMOS HIGH PERFORMANCE OPTICAL MOUSE SENSOR

PixArt Imaging Inc.
PAN301A
2. Block Diagram and Operation
LED
VSS_LED
LED
DRIVE
XA
QUADRATURE
XB
OUTPUTS
YA
YB
POWER ON
RESET
CMOS
IMAGE
SENSOR
DIGITAL
SIGNAL
PROCESSOR
CMOS Optical Mouse Sensor
VDD
VSS
VSS
5V
POWER
PD
VREFA _VOLTAGE
VREFB ^REFERENCE
SERIAL
INTERFACE
SCLK
SDIO
SERIAL
INTERFACE ^{CONTROL REGISTER OSCILLATOR}
OSCIN
OSCOUT ^RESONATOR
Figure 3. Block diagram
The PAN301A is a high performance 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
sensor is in a 20pin optical package. The output format is two-channel quadrature (X and Y direction),
which emulates encoder phototransistors. The current X and Y information are also available in registers
accessed via a serial port.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
3
PixArt Imaging Inc.
E-mail: [e-mail]
V1.3, MAY. 2004