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PDF ADNS2051 Data sheet ( Hoja de datos )
| Número de pieza | ADNS2051 | |
| Descripción | Optical Mouse Sensor | |
| Fabricantes | Agilent Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADNS2051 (archivo pdf) en la parte inferior de esta página. Total 40 Páginas | ||
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Agilent ADNS-2051
Optical Mouse Sensor
Data Sheet
Features
.comDescription
UThe ADNS-2051 is a low cost
optical sensor used to implement a
t4non-mechanical tracking engine for
computer mice.
eIt is based on optical navigation
etechnology, which measures
changes in position by optically
hacquiring sequential surface images
(frames) and mathematically deter-
Smining the direction and magnitude
taof movement.
The sensor is housed in a 16-pin
astaggered dual inline package (DIP)
that is designed for use with the
.DHDNS-2100 Lens and HDNS-2200
Clip and HLMP-ED80-XXXXX
(639 nm LED illuminator source).
wThere are no moving parts, and
precision optical alignment is not
wrequired, facilitating high volume
assembly.
w .comThe output format is two channel
quadrature (X and Y direction)
t4Uwhich emulates encoder photo-
transistors. The current X and Y
einformation are also available in
www.DataSheregisters accessed via a serial port.
Default resolution is specified as
400 counts per inch (cpi), with
rates of motion up to 14 inches
per second (ips).
Resolution can also be pro-
grammed to 800 cpi.
The part is programmed via a two
wire serial port, through registers.
Theory of Operation
The ADNS-2051 is based on
Optical Navigation Technology.
It contains an Image Acquisition
System (IAS), a Digital Signal
Processor (DSP), a two-channel
quadrature output, and a two wire
serial port.
The IAS acquires microscopic
surface images via the lens and
illumination system provided by
the HDNS-2100, 2200, and
HLMP-ED80-XXXXX LED. These
images are processed by the DSP
to determine the direction and
distance of motion. The DSP
generates the ∆x and ∆y relative
displacement values that are
converted into two channel
quadrature signals.
• Precise optical navigation tech-
nology
• No mechanical moving parts
• Complete 2D motion sensor
• Serial interface and/or
quadrature interface
• Smooth surface navigation
• Programmable frame speed up to
2300 frames per sec (fps)
• Accurate motion up to 14 ips
• 800 cpi resolution
• High reliability
• High speed motion detector
• No precision optical alignment
• Wave solderable
• Single 5.0 volt power supply
• Shutdown pin for USB suspend
mode operation
• Power conservation mode during
times of no movement
• On chip LED drive with regulated
current
• Serial port registers
– Programming
– Data transfer
• 16-pin staggered dual inline
package (DIP)
Applications
• Mice for desktop PCs,
workstations, and portable PCs
• Trackballs
• Integrated input devices
1 page  
HDNS-2200 (CLIP)
HLMP-ED80-XXXXX (LED)
ADNS-2051 (SENSOR)
CUSTOMER SUPPLIED PCB
HDNS-2100 (LENS)
CUSTOMER SUPPLIED BASE PLATE
WITH RECOMMENDED ALIGNMENT
FEATURES PER IGES DRAWING
Figure 5. Exploded view drawing.
PCB Assembly Considerations
1. Insert the sensor and all
other electrical components
into PCB.
2. Bend the LED leads 90° and
then insert the LED into the
assembly clip until the snap
feature locks the LED base.
3. Insert the LED/clip assembly
into PCB.
4. Wave Solder the entire as-
sembly in a no-wash solder
process utilizing solder fix-
ture. The solder fixture is
needed to protect the sensor
during the solder process.
The fixture should be de-
signed to expose the sensor
leads to solder while shield-
ing the optical aperture from
direct solder contact. The
solder fixture is also used to
set the reference height of
the sensor to the PCB top
during wave soldering (Note:
DO NOT remove the kapton
tape during wave soldering).
5. Place the lens onto the base
plate.
6. Remove the protective
kapton tape from optical
aperture of the sensor. Care
must be taken to keep con-
taminants from entering the
aperture. It is recommended
not to place the PCB facing
up during the entire mouse
assembly process. The PCB
should be held vertically
during the kapton removal
process.
7. Insert PCB assembly over the
lens onto the base plate align-
ing post to retain PCB assem-
bly. The sensor aperture ring
should self-align to the lens.
8. The optical position refer-
ence for the PCB is set by the
base plate and lens. Note that
the PCB motion due to button
presses must be minimized to
maintain optical alignment.
9. Install mouse top case. There
MUST be a feature in the top
case to press down onto the
clip to ensure all components
are interlocked to the correct
vertical height.
5
5 Page 
DC Electrical Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25˚C, VDD = 5.0 V, 18 MHz.
Parameter
Symbol Min. Typ.
Max.
Units
Notes
DC Supply Current
(mouse moving)
IDD AVG
15 25 mA No load on XA, XB, YA, YB,
SCLK, SDIO. Excluding LED
current.
Peak Supply Current
(mouse moving)
IDD PEAK
20
mA No load on XA, XB, YA, YB,
SCLK, SDIO. Excluding LED
current.
DC Supply Current
(mouse not moving)
IDD
12 25 mA No load on XA, XB, YA, YB,
SCLK, SDIO. Excluding LED
current.
DC Supply Current
(power down)
IDDPD
170 240 µA PD = high; SCLK, SDIO = GND
or VDD; VDD = 4.25 V to 5.25 V.
SCLK, SDIO, PD
Input Low Voltage
VIL
0.8 V
Input High Voltage
VIH
0.5 * VDD
V
Output Low Voltage
VOL
0.7 V
@ IOL = 2 mA (SDIO only)
Output High Voltage
VOH
0.6 * VDD
V @ IOH = 2 mA (SDIO only)
Output Low Voltage
(XA, XB, YA, YB)
VOL
0.4 V
@ IOL = 0.5 mA.
Output High Voltage VOH 0.6 * VDD
(XA, XB, YA, YB)
V @ IOH = 0.5 mA .
Output Low Voltage
(XY_LED)
VOL
1.1 V
Refer to Figure 11.
XY LED Current
ILED Typ–15% 630/R1 Typ + 15% A
Refer to Figure 11, see table
below.
XY LED Current
(fault mode)
ILED
500 µA R1 < 200 Ω.
REF_A (normal mode)
VREFA
3.3
V 1.5 KΩ to 3.0 V or GND,
PD = low.
REF_A (power down mode) VREFA
3.3
V 1.5 KΩ to 3.0 V or GND,
PD = high.
100 Typical LED Current Table
R1 Value
kΩ 15 18 22 27 33 37
80 LED current (typical) mA 42 35 29 23 19 17
60
40
20
R = 15 k
R = 30 k
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
VOL (V)
Figure 11. Typical I-V characteristic of
ADNS-2051 XY_LED pin.
11
11 Page | ||
| Páginas | Total 40 Páginas | |
| PDF Descargar | [ Datasheet ADNS2051.PDF ] | |
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