HSDL3602 datasheet(22/25 Pages) HP

Part #	HSDL3602

Description	Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver

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Manufacturer	HP [Agilent(Hewlett-Packard)]

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21

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

300 and the maximum size corre-

sponds to a cone angle of 60º.

In the figure below, X is the

width of the window, Y is the

height of the window and Z is the

distance from the HSDL-3602 to

the back of the window. The dis-

tance from the center of the LED

lens to the center of the photo-

diode lens, K, is 7.08mm. The

equations for computing the win-

dow dimensions are as follows:

X = K + 2*(Z+D)*tanA

Y = 2*(Z+D)*tanA

The above equations assume that

the thickness of the window is

negligible compared to the dis-

tance of the module from the back

of the window (Z). If they are com-

parable, Z' replaces Z in the above

equation. Z' is defined as

Z'=Z+t/n

where ‘t’ is the thickness of the

window and ‘n’ is the refractive

index of the window material.

The depth of the LED image in-

side the HSDL-3602, D, is 8mm.

‘A’ is the required half angle for

viewing. For IrDA compliance,

the minimum is 150 and the

maximum is 300. Assuming the

thickness of the window to be

negligible, the equations result in

the following tables and graphs:

D

Z

K

A

IR TRANSPARENT WINDOW

OPAQUE MATERIAL

IR TRANSPARENT WINDOW

X

Appendix C: Optical Port

Dimensions for HSDL-3602:

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Similar Description - HSDL3602

Manufacturer	Part #	Datasheet	Description
AVAGO TECHNOLOGIES LIMI...	HSDL-3602	424Kb / 27P	IrDA짰 Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver
Lite-On Technology Corp...	HSDL-3602	733Kb / 27P	IrDA짰 Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver
Infineon Technologies A...	IRMS6453	452Kb / 7P	4 Mb/s Infrared Data Transceiver
Lite-On Technology Corp...	HSDL-3200-021	454Kb / 14P	IrDA짰 Data 1.4 Compliant 115.2 Kb/s Infrared Transceiver
Agilent(Hewlett-Packard...	HSDL-3200	135Kb / 14P	IrDA Data 1.4 Compliant 115.2 Kb/s Infrared Transceiver
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	HSDL-3600	567Kb / 34P	IrDA Compliant 4 Mb/s 3 V Infrared Transceiver
AVAGO TECHNOLOGIES LIMI...	HSDL-3600	1Mb / 34P	IrDA짰 Compliant 4 Mb/s 3 V Infrared Transceiver
Agilent(Hewlett-Packard...	HSDL-3612	356Kb / 25P	IrDA Data Compliant 115.2kb/s 3V to 5V Infrared Transceiver
Lite-On Technology Corp...	HSDL-3201	1Mb / 20P	IrDA짰 Data 1.4 Low Power Compliant 115.2 kb/s Infrared Transceiver

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HSDL3602 Datasheet(PDF) 22 Page - Agilent(Hewlett-Packard)

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