HDSP-2533 Datasheet, PDF (15/15 Pages) AVAGO TECHNOLOGIES LIMITED – Eight Character 5 mm Smart Alphanumeric Display

Ground Connections
Two ground pins are provided to keep the internal IC logic
ground clean. The designer can, when necessary, route
the ana­log ground for the LED drivers separately from
the logic ground until an appropriate ground plane is
available. On long inter­­connections between the display
and the host system, the designer can keep voltage drops
on the analog ground from affect­ing the display logic
levels by isolating the two grounds.
The logic ground should be con­nected to the same ground
poten­tial as the logic interface circuitry. The analog ground
and the logic ground should be connected at a common
ground which can withstand the cur­rent induced by the
switch­ing LED drivers. When separate ground connections
are used, the analog ground can vary from -0.3 V to +0.3 V
with respect to the logic ground. Volt­age below -0.3 V can
cause all dots to be on. Voltage above +0.3 V can cause
dimming and dot mismatch.
Solder and Post Solder Cleaning
Note: Freon vapors can cause the black paint to peel off
the display. See Application Note 1027 for information on
soldering and post solder cleaning.
Contrast Enhancement (Filtering)
See Application Note 1015 for information on contrast
enhancement.
Intensity Bin Limits for HDSP-2534
Intensity Range (mcd)
Bin
Min.
Max.
I
5.12
9.01
J
7.68
13.52
K
11.52
20.28
L
17.27
30.42
M
25.91
45.63
Note:
Test conditions as specified in Optical Characteristic table.
Intensity Bin Limits for HDSP-253x
Intensity Range (mcd)
Bin
Min.
Max.
G
2.50
4.00
H
3.41
6.01
I
5.12
9.01
J
7.68
13.52
K
11.52
20.28
Note:
Test conditions as specified in Optical Characteristic table.
Color Bin Limits

Color Range (nm)
Color
Bin
Min.
Max.
Green
1
576.0
580.0
2
573.0
577.0
3
570.0
574.0
4
567.0
571.0
Yellow
3
581.5
585.0
4
584.0
587.5
5
586.5
590.0
6
589.0
592.5
7
591.5
595.0
Note:
Test conditions as specified in Optical Characteristic table.
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Data subject to change. Copyright © 2005-2009 Avago Technologies. All rights reserved. Obsoletes 5989-3184EN
AV02-2018EN - July 15, 2009