ADNS-4000 Avago Technologies US Inc., ADNS-4000 Datasheet - Page 2

• Manufacturer Part Number: ADNS-4000
• Description: SENSOR OPTICAL MOUSE LP 8DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-4000

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Theory of Operation
The ADNS-4000 is based on Optical Navigation Technol-
ogy, which measures changes in position by optically
acquiring sequential surface images (frames) and math-
ematically determining the direction and magnitude of
movement.
The ADNS-4000 contains an Image Acquisition System
(IAS), a Digital Signal Processor (DSP), and a four wire se-
rial port.
The IAS acquires microscopic surface images via the lens
and illumination system. These images are processed by
the DSP to determine the direction and distance of mo-
tion. The DSP calculates the Dx and Dy relative displace-
ment values.
An external microcontroller reads and translates the Dx
and Dy information from the sensor serial port into PS2,
USB, or RF signals before sending them to the host PC.
2
Pinout of ADNS-4000 Optical Mouse Sensor
Figure 1. Package outline drawing (top view)
Pin
1
2
3
4
5
6
7
8
5 SCLK
6 GND
7 VDD
8 MOSI
Name
MISO
LED
MOTION
NCS
SCLK
GND
VDD
MOSI
Output
Power
Input/
Gnd
O
O
O
I
I
I
Description
(Master In/ Slave Out)
LED Illumination
(Default active low)
Chip Select
(Active low input)
Ground
Supply Voltage
Serial Data Input
(Master Out/ Slave In)
Serial Data Output
Motion Interrupt Output
Serial Clock
4 NCS
3 MOTION
2 LED
1 MISO