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PDF ADNS-3050 Data sheet ( Hoja de datos )
| Número de pieza | ADNS-3050 | |
| Descripción | Entry-level Gaming Optical Navigation Sensor | |
| Fabricantes | PixArt | |
| Logotipo |  |
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ADNS-3050
ADNS-3050 Entry-level Gaming Optical Navigation Sensor
Data Sheet
Description
Features
The Pixart ADNS-3050 is a small form factor entry-level
gaming optical navigation sensor. It is housed
in an 8-pin staggered dual in-line package (DIP). It is ca-
pable of high-speed motion detection typically at 60ips
and acceleration up to 20g; suitable for both wired and
wireless gaming navigation system. The low power man-
agement in wireless mode can be customized to suit user
preferences. In addition, it has an on-chip oscillator and
LED driver to minimize external components.
The ADNS-3050 sensor along with the ADNS-5110-001
lens, PS"%/4trim MFOTLED clip, and HLMP-EG3E
red LED forms a complete and compact mouse tracking
system. There are no moving parts, which translates to
high reliability and less maintenance for the end user.
Precision optical alignment is not required, thus facilitating
high volume assembly.
Small Form Factor Package - 8-pin DIP
Operating Voltage: 2.8V-3.0V
High Speed Motion Detection at typical of 60ips and
acceleration up to 20g.
Selectable Resolutions up to 2000cpi
Four wire Serial Port Interface
External Interrupt Output for Motion Detection
Internal Oscillator — no clock input needed
On-chip LED driver
Minimal number of passive components
Programmable power-saving modes for selectable
wired or wireless application
Customizable response time and downshift time for
rest modes
Theory of Operation
Configurable LED operating modes and drive current
The ADNS-3050 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-3050 contains an Image Acquisi-
tion System (IAS), a Digital Signal Processor (DSP), and a
four wire serial port. The IAS acquires microscopic surface
images via the lens and illumination system. These im-
ages are processed by the DSP to determine the direction
and distance of motion. The DSP calculates the ΔX and Δy
relative displacement values. An external microcontroller
reads and translates the ΔX and Δy information from the
sensor serial port into PS2, USB, or RF signals before send-
ing them to the host PC.
Applications
Wired and Wireless Optical gaming mice and trackballs
Integrated input devices
Battery-powered input devices
NOTE: The ADNS-3050 sensor is not designed for use with blue
LED navigation system.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
1
1 page  
PixArt Imaging Inc.
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TOP VIEW
CROSS SECTION SIDEVIEW
Important Note: Pin 1 of sensor should be located nearest to the LED
Figure 4. 2D Assembly drawing of ADNS-3050 (Top and Side View)
Note:
A – Distance from object surface to lens reference plane
B – Distance from object surface to sensor reference plane
Figure 5. Distance from lens reference plane to tracking surface (Z)
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
5
5 Page 
PixArt Imaging Inc.
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Table 4. DC Electrical Specifications
Electrical characteristics over recommended operating conditions. Typical values at 25° C, VDDLED = 2.8 V, IRLED HLMP-
EG3E, RLED = 33 .
Parameter
DC Supply Current
Power Down Current
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Leakage Current
Output Low Voltage
Output High Voltage
Input Capacitance
Symbol
IDD_RUN_DC
IDD_RUN_WIRELESS
IDD_REST1
IDD_REST2
IDD_REST3
IPD
VIL
VIH
VI_HYS
Ileak
VOL
VOH
Cin
Min
Vdd-0.5
Vdd-0.7
Typ.
26.604
14.236
0.817
0.105
0.022
10
Max
0.5
200
±1 ±10
0.7
50
Units
mA
Notes
Including LED current.
No load on MISO
Default sensor setting for Rest 1,
Rest 2 and Rest 3 modes
μA
V SCLK, MOSI, NCS
V SCLK, MOSI, NCS
mV SCLK, MOSI, NCS
μA Vin=VDD-0.6V, SCLK, MOSI, NCS
V Iout=1mA, MISO, MOTION
V Iout=-1mA, MISO, MOTION
pF MOSI, NCS, SCLK
Synchronous Serial Port
The synchronous serial port is used to set and read pa-
rameters in the ADNS-3050, and to read out the motion
information. The port is a four wire serial port. The host
micro-controller always initiates communication; the
ADNS-3050 never initiates data transfers. SCLK, MOSI, and
NCS may be driven directly by a micro-controller. The port
pins may be shared with other SPI slave devices. When the
NCS pin is high, the inputs are ignored and the output is
at tri-state.
The lines that comprise the SPI port:
SCLK: Clock input. It is always generated by the master
(the micro-controller).
MOSI: Input data. (Master Out/Slave In)
MISO: Output data. (Master In/Slave Out)
NCS: Chip select input (active low). NCS needs to be low
to activate the serial port; otherwise, MISO will be
high Z, and MOSI & SCLK will be ignored. NCS can
also be used to reset the serial port in case of an
error.
Chip Select Operation
The serial port is activated after NCS goes low; otherwise,
MISO will be high-Z, while MOSI and SCLK will be ignored.
If NCS is raised during a transaction, the entire transaction
is aborted and the serial port will be reset. This is true for
all transactions. After a transaction is aborted, the nor-
mal address-to-data or transaction-to-transaction delay
is still required before beginning the next transaction. To
improve communication reliability, all serial transactions
should be framed by NCS. NCS can also be used to reset
the serial port in case of an error occurs.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
11
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