ADNS-2051 Ver la hoja de datos (PDF) - Avago Technologies
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ADNS-2051 Datasheet PDF : 40 Pages
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Typical Performance Characteristics
Performance characteristics over recommended operating conditions. Typical values at 25°C, VDD = 5.0 V, 18 MHz.
Parameter
Symbol
Min. Typ. Max. Units Notes
Path Error (Deviation)
PERROR
0.5
%
Path Error (Deviation) is the error from the
ideal cursor path. It is expressed as a
percentage of total travel and is measured
over standard surfaces.
The following graphs (Figures 21, 22, 23, and 24) are the typical performance of the ADNS-2051 sensor, assembled as
shown in the 2D assembly drawing with the HDNS-2100 Lens/Prism, the HDNS-2200 clip, and the HLMP-ED80-XX000
LED (page 3, Figure 4).
TYPICAL RESOLUTION vs. HEIGHT
500
450
400
350
Z
300
250
200
150
100
DOF
DOF
RECOMMENDED
OPERATING
REGION
WHITE PAPER
MANILA FOLDER
50
BURL FORMICA
0
DARK WALNUT
BLACK COPY
-50
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
HEIGHT – mm (2.4 = NOMINAL FOCUS)
Figure 21. Typical resolution vs. Z (comparative
surfaces)[2,3]
ADNS-2051 fig 23
TYPICAL RESOLUTION vs. HEIGHT
AT DIFFERENT LED CURRENT LEVELS
[BRIGHTNESS] (MANILA FOLDER)
450
400
Z
350
DOF
300
DOF
250
RECOMMENDED
200
OPERATING
REGION
150
100
100%
75%
50
50%
0
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
HEIGHT – mm (2.4 = NOMINAL FOCUS)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
400 500 600 700 800 900 1000
WAVELENGTH (nm)
Figure 22. Wavelength responsitivity[1]
TYPICAL RESOLUTION vs. HEIGHT
AT DIFFERENT LED CURRENT LEVELS
[BRIGHTNESS] (BLACK COPY)
450
400
350
300
250
Z
200
DOF
150
DOF
100%
100
75%
50%
50
RECOMMENDED
0
OPERATING
REGION
-50
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
HEIGHT – mm (2.4 = NOMINAL FOCUS)
Figure 23. Typical resolution vs. z (manila folder
and LED variation)[2,3]
ADNS-2051 fig 21
Figure 24. Typical resolution vs. z (black copy
and LED variation)[2,3]
ADNS-2051 fig 24
Note:
1. The ADNS-2051 is designed for optimal performance when used with the HLMP-ED80-XX000 (red LED 639 nm). For use with other LED colors
(i.e., blue, green), please consult factory. When using alternate LEDs, there may also be performance degradation and additional eye safety con-
siderations.
2. Z = Distance from Lens Reference plane to Surface.
3. DOF = Depth of Field.
17
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