Agilent ADNS-2001
Optical Mouse Sensor
Data Sheet
Caution
: It is advised that normal static precautions be taken in handling and assembly of this component to prevent
damage and/or degradation which may be induced by ESD.
Features
Optical navigation technology
Superior precision and smooth
navigation optimized for
desktop and portable mouse
applications
No mechanical moving parts,
provides high reliability and
needs no maintenance
Complete compact 2-D motion
sensor
Easy implementation and
design flexibility
Replaces mechanical ball
system in traditional mice
Two selectable output modes
Two channel quadrature output
mode (X and Y direction) which
emulates encoder
phototransistors
Standard 3-button PS/2 output
mode
High speed motion detector
Accurately measures up to
16 inches per second at 400 cpi
Accurate navigation over a wide
range of surfaces
Enables mouse to be used with
or without a mouse pad
Power conservation mode during
no motion
Compatible with high volume
manufacturing processes
Requires no precision optical
alignment
Wave solderable
33% faster than HDNS-2000
2000 fps (@ 24 MHz)
Applications
Computer mice for desktop PCs,
workstations, and portable
computers
Trackball
Integrated input devices
Description
The ADNS-2001 is a low-cost
reflective optical sensor that
provides a non-mechanical
tracking engine for implementing a
computer mouse.
It is based on optical navigation
technology which measures
changes in position by optically
acquiring sequential surface
images (frames) and mathematic-
ally determining the direction and
magnitude of movement. The
sensor is mounted in a plastic
optical package and designed to be
used with the HDNS-2100 (Lens),
HDNS-2200 (LED Assembly Clip)
and HLMP-ED80 (High Light
Output 639 nm LED), providing a
complete and compact tracking
engine. This optical tracking
engine has no moving parts and
requires no precision optical
alignment enabling high volume
system assembly. The ADNS-2001
offers a PS/2 or quadrature output
mode for interface flexibility.
Resolution is specified as 400 cpi
at rates of motion up to 16 inches
per second.
2
Theory of Operation
The ADNS-2001 is based on
Optical Navigation Technology. It
contains an Image Acquisition
System (IAS), Digital Signal Pro-
cessor (DSP), and a mode select-
able PS/2 or quadrature output
converter. The IAS acquires im-
ages of microscopic surface im-
ages via the lens and illumination
Figure 1. ADNS-2001 block diagram.
Figure 2. ADNS-2001 sensor package outline drawing.
IMAGE
ACQUISITION
SYSTEM
DIGITAL
SIGNAL
PROCESSOR
PS/2 or QUAD
OUTPUT
CONVERTER
system provided by the HDNS-
2100, HDNS-2200, and the
HLMP-ED80. These images are
further processed by the DSP to
determine direction and distance
of motion. The DSP generates a
stream of delta x and delta y rela-
tive displacement values which
are then communicated to the
output converter. This converter
provides a PS/2 3-button output,
replacing existing mouse
microcontrollers, or two channel
quadrature output, for direct
interface to existing mouse
microcontrollers.
While the part can be run at 24
MHz in quadrature mode, 18 MHz
is recommended for PS/2 mode.
KAPTON TAPE
3.18
(0.125)
5.15
(0.203)
9.10
(0.358)
12.34
(0.486)
NOTES:
1. DIMENSIONS IN MILLIMETERS (INCHES).
2. DIMENSIONAL TOLERANCE: 0.1 mm.
3. COPLANARITY OF LEADS: 0.1 mm.
4. LEAD PITCH TOLERANCE: 0.15 mm.
5. CUMULATIVE PITCH TOLERANCE: 0.15 mm.
6. ANGULAR TOLERANCE: 3.0 DEGREES.
7. MAXIMUM FLASH + 0.2 mm.
8. CHAMFER (25 DEGREES x 2) ON THE
TAPER SIDE OF THE LEAD.
1.42
(0.056)
0.99
(0.039)
6.17
(0.243)
5 TYP.
0.25
(0.010)
PIN 1
22.30
(0.878)
2.54
(0.100)
1.27
(0.050)
0.50
(0.020)
LEAD WIDTH
LEAD OFFSET
LEAD PITCH
13.38
(0.527)
6.02
(0.237)
4.55
(0.179)
5.60
(0.220)
A 2001
XYYWWZ
3
Pinout
Pin
Name
PS/2 Mode
Quadrature Mode
1
PS2_C
PS/2 Interface Clock
PS/2 Interface Clock
2
MODE/XA
Select PS/2 Mode
XA Output
3
RB/XB
Right Button Input
XB Output
4
MB/YB
Middle Button Input
YB Output
5
LB/YA
Left Button Input
YA Output
6
XY_LED
LED Control Output
LED Control Output
7
VDD3
3.3 VDC Input
3.3 VDC Input
8
REFB
Internal Reference
Internal Reference
9
OSC1
Oscillator Input
Oscillator Input
10
GND
Ground
Ground
11
OSC2
Oscillator Output
Oscillator Output
12
GND
Ground
Ground
13
VDD5
5 VDC Input
5 VDC Input
14
VDD5
5 VDC Input
5 VDC Input
15
NRESET
NRESET
NRESET
16
PS2_D
PS/2 Interface Data
PS/2 Interface Data
Figure 3.
2D Assembly Drawing of ADNS-2001
Shown with HDNS-2100, HDNS-
2200, and HLMP-ED80.
Agilent provides an IGES file
drawing describing the base plate
molding features for lens and
PCB alignment. Please contact
sales representative or visit our
web site. Also, see HDNS-2100
Technical Data Sheet for more
information.
19.10
(0.752)
44.29
(1.744)
ESD LENS RING
BASE PLATE
+x
+y
13.82
(0.544)
14.58
(0.574)
10.58
(0.417)
7.45
(0.293)
BASE PLATE
ALIGNMENT POST
SENSOR
PCB
CLIP
PLASTIC SPRING
SURFACE IS 0 REF.
4
Exploded View Drawing
Figure 4.
Typical Application using PS/2 Output
18 MHz Operation for generic PS/2
compatibility
VDD5
VDD5
13
14
2
MODE/XA
PS2_C
1
PS2_D
16
RB
3
MB
4
LB
5
CLK (5)
DATA (1)
GND (3)
L
BUTTONS
GND
GND
10
12
18.432 MHz
0.1 F
0.22 F
7
8
0.1 F
1.0 F
REFB
XY_LED
NRESET
6
15
3.3 V
REGULATOR
LP2950ACZ-3.3
R1
2N3904
HLMP-ED80
SURFACE
+5 V (4)
5
3
1
2
6
4
PS/2
CONNECTOR
VDD3
HDNS-2100
LENS
INTERNAL
IMAGE
SENSOR
ADNS
2001
M
R
OSC1
OSC2
9
11
18.432 MHz CERAMIC RESONATOR SUCH AS
AVX KBR-18-432-MSA or
MURATA CSA18.432MXZ040
Note:
0.1
F between pins 7 and 8 must be ceraminc, and must be trace lengths less than 5 mm.
HDNS-2200 (CLIP)
HLMP-ED80 (LED)
ADNS-2001 (SENSOR)
CUSTOMER SUPPLIED PCB
HDNS-2100 (LENS)
CUSTOMER SUPPLIED BASE PLATE
WITH RECOMMENDED ALIGNMENT
FEATURES PER IGES DRAWING
5
Typical USB Application using
Quadrature Output
18 or 24 MHz Operation
Notes:
1. Due to the Cypress implementation of USB suspend mode support, the NRESET pin of the ADNS-2001 must be reset using a line from the Cypress
chip. The reason for this is that the Cypress chip does not configure the port input pins until after it has received a bus reset from the USB port.
The unconfigured input port pins present a 16 K
pullup to V
CC
. If a cap is used on NRESET (pin 15), this pullup will result in the ADNS-2001
seeing a high on the MODE pin and powering up in the PS/2 mode.
2. The quadrature input pins of the Cypress part must be programmed to be Hi-Z, instead of the normal current pulldowns. This ensures that the
ADNS-2001 will be able to pull the quadrature lines high over all conditions of voltage and temperature.
3. 0.1
F between pins 7 and 8 must be ceramic, and must be trace lengths less than 5 mm.
VDD5
VDD5
13
14
2
MODE/XA
XB
3
YB
4
YA
5
15
D
D+
GND GND
10
12
24.00 MHz
0.1 F
7
8
0.1 F
1.0 F
REFB
XY_LED
NRESET
6
3.3 V
REGULATOR
LP2950ACZ-3.3
R1
2N3904
HLMP-ED80
SURFACE
VDD
VDD3
HDNS-2100
LENS
INTERNAL
IMAGE
SENSOR
ADNS
2001
OSC1
OSC2
9
11
24.00 MHz CERAMIC RESONATOR
SUCH AS:
AVX KBR-24.00MSA or
MURATA CSA24.00MXZ040
PS2_C PS2_D
1
16
D
13
D+
14
XTALIN
10
11
P0.4 P0.5
20
19
5
2
P0.1
P0.2
XTALOUT
3
P1.0
CYPRESS
CY7C63000A-PC
P0.3
P0.2
4
15
P0.7 P0.6
L
R
P1.2
6
M
17
18
VPP
8
VSS
7
BUTTONS
PANASONIC
EVQ SERIES
ENCODER
P1.1
P0.0 1
16
4.7 F
0.1 F
12
VDD
9
CEXT
2N3906
1.5 M
7.5 K
GND
SHLD
6 MHz
2.7
0.33 F
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