ASDL-3023-021 Avago Technologies US Inc., ASDL-3023-021 Datasheet - Page 21

• Manufacturer Part Number: ASDL-3023-021
• Description: Infrared Transceivers SFF FIR+RC Front w/o Shield
• Manufacturer: Avago Technologies US Inc.

Specifications of ASDL-3023-021

• Wavelength: 885 nm, 875 nm
• Continual Data Transmission: 4 Mbit/s
• Transmission Distance: 30 cm
• Radiant Intensity: 50 mW/sr
• Half Intensity Angle Degrees: 15 deg
• Pulse Width: 4 us, 1.6 us
• Maximum Rise Time: 60 ns, 600 ns
• Maximum Fall Time: 60 ns, 600 ns
• Led Supply Voltage: - 0.3 V to 6 V
• Operating Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Dimensions: 7.5 mm x 2.75 mm x 1.75 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Appendix E: Window Design for ASDL-3023.
To ensure IrDA compliance, some constraints on the
height and width of the window exist. The minimum
dimensions ensure that the IrDA cones angles are met
without vignetting. The maximum dimensions minimize
the effects of stray light. The minimum size corresponds
to a cone angle of 300 and the maximum size corre-
sponds to a cone angle of 600.
In the figure above, X is the width of the window, Y is the
height of window, Z is the distance from the ASDL-3023
to the back of the window and T is the thickness of the IR
transparent window.
W
thickness
For the modules depth values that are not shown on the
tables above, the minimum X and Y values can be inter-
polated.


= 0.3456*T, W
OPAQUE MATERIAL
2
= 0.6967*T, where T is the window
Z
X
Z
IR TRANSPARENT WINDOW
T
Depth(Z)
0



4
5
6
7
8
9
0
IR TRANSPARENT
WINDOW
Y(Min)
.70+W
.+W
.77+W
.+W
.84+W
4.8+W
4.9+W
5.45+W
5.99+W
6.5+W
7.06+W
OPAQUE WINDOW











Y
X(Min)
7.0+W
7.7+W
8.7+W
8.8+W
9.4+W
9.88+W
0.4+W
0.95+W
.49+W
.0+W
.56+W











Y(Max)
.66+W
4.8+W
5.97+W
7.+W
8.8+W
9.4+W
0.59+W
.74+W
.90+W
4.05+W
5.+W











X(Max)
9.6+W
0.+W
.47+W
.6+W
.78+W
4.9+W
6.09+W
7.4+W
8.40+W
9.55+W
0.7+W