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HSDL-3202 Datasheet(PDF) 13 Page - Agilent(Hewlett-Packard) |
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HSDL-3202 Datasheet(HTML) 13 Page - Agilent(Hewlett-Packard) |
13 / 16 page ![]() 13 Window Design To ensure IrDA compliance, some constraints on the height and width of the window exist. The minimum dimensions ensure that the IrDA cone angles are met without vignetting. The maximum dimensions minimize the effects of stray light. The minimum size corresponds to a cone angle of 30 degrees, the maximum to a cone angle of 60 degrees. The drawing below shows the module positioned in front of a window. X is the width of the window, Y is the height of the window, and Z is the distance from the HSDL-3202 to the back of the window. The distance from the center of the LED lens to the center of the photodiode lens is 5.1 mm. The equations for the size of the window are as follows: X = 5.1 +2(Z + D) tan θ Y = 2(Z + D) tan θ Where θ is the required half angle for viewing. For the IrDA mini- mum, it is 15 degrees; for the IrDA maximum, it is 30 degrees. (D is the depth of the LED image inside the part, 3.17 mm). These equations result in the following tables and graphs: Y X Z Minimum and Maximum Window Sizes Dimensions are in mm. Depth (Z) Y min. X min. Y max. X max. 0 1.70 6.80 3.66 8.76 1 2.23 7.33 4.82 9.92 2 2.77 7.87 5.97 11.07 3 3.31 8.41 7.12 12.22 4 3.84 8.94 8.28 13.38 5 4.38 9.48 9.43 14.53 6 4.91 10.01 10.59 15.69 7 5.45 10.55 11.74 16.84 8 5.99 11.09 12.90 18.00 9 6.52 11.62 14.05 19.15 10 7.06 12.16 15.21 20.31 Window Height Y vs. Module Depth Z Window Width X vs. Module Depth Z 16 MODULE DEPTH Z – mm 6 48 0 2 14 010 10 26 12 8 4 ACCEPTABLE RANGE 22 MODULE DEPTH Z – mm 12 48 6 8 20 010 16 26 18 14 10 ACCEPTABLE RANGE |
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Similar Description - HSDL-3202 |
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