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參數(shù)資料
| 型號： | HSDL-3211-021 |
| 廠商： | Avago Technologies Ltd. |
| 英文描述： | IrDA㈢ Data Compliant Low Power 1.15 Mbit/s Infrared Transceiver |
| 中文描述： | 紅外線㈢數(shù)據(jù)兼容低功耗1.15 Mbit / s的紅外收發(fā)器 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大小： | 184K |
| 代理商： | HSDL-3211-021 |
17
Window Material
Almost any plastic material will
work as a window material.
Polycarbonate is recommended.
The surface finish of the plastic
should be smooth, without any
texture. An IR filter dye may be
used in the window to make it
look black to the eye, but the
total optical loss of the window
should be 10% or less for best
optical performance. Light loss
should be measured at 875 nm.
The recommended plastic
materials for use as a cosmetic
window are available from
General Electric Plastics.
Shape of the Window
From an optics standpoint, the
window should be flat. This
ensures that the window will not
alter either the radiation pattern
of the LED, or the receive pattern
of the photodiode.
If the window must be curved for
mechanical or industrial design
reasons, place the same curve on
the back side of the window that
has an identical radius as the
front side. While this will not
completely eliminate the lens
effect of the front curved surface,
it will significantly reduce the
effects. The amount of change in
the radiation pattern is depen-
dent upon the material chosen
for the window, the radius of the
front and back curves, and the
distance from the back surface to
the transceiver. Once these items
are known, a lens design can be
made which will eliminate the
effect of the front surface curve.
The following drawings show the
effects of a curved window on the
radiation pattern. In all cases,
the center thickness of the
window is 1.5 mm, the window is
made of polycarbonate plastic,
and the distance from the
transceiver to the back surface of
the window is 3 mm.
Recommended Plastic Materials:
Material #
Light Transmission
Haze
Refractive Index
Lexan 141
88%
1%
1.586
Lexan 920A
85%
1%
1.586
Lexan 940A
85%
1%
1.586
Note
: 920A and 940A are more flame retardant than 141.
Figure 20. Shape of windows.
Curved Front and Back
(Second Choice)
Flat Window
(First Choice)
Curved Front, Flat Back
(Do Not Use)
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PDF描述 |
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| HSDL-3220 | IrDA㈢ Data Compliant Low Power 4.0 Mbit/s Infrared Transceiver |
| HSDL-3220-001 | IrDA㈢ Data Compliant Low Power 4.0 Mbit/s Infrared Transceiver |
| HSDL-3220-021 | IrDA㈢ Data Compliant Low Power 4.0 Mbit/s Infrared Transceiver |
| HSDL-3602 | IrDA㈢ Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver |
| HSDL-3602-008 | IrDA㈢ Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HSDL-3220 | 制造商:Avago Technologies 功能描述:TRANSCEIVER IRDA 4MB/S |
| HSDL-3220-001 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:IrDA㈢ Data Compliant Low Power 4.0 Mbit/s Infrared Transceiver |
| HSDL-3220-021 | 功能描述:紅外收發(fā)器 20-30cm 3V FIR RoHS:否 制造商:Vishay Semiconductors 波長:900 nm 連續(xù)數(shù)據(jù)傳輸:115.2 Kbit/s 傳輸距離:1 m 輻射強(qiáng)度:60 mW/sr 半強(qiáng)度角度:44 deg 脈沖寬度:2 us 最大上升時間:100 ns 最大下降時間:100 ns LED 電源電壓:- 0.5 V to 6 V 最大正向電流:80 mA 工作電壓:2.4 V to 5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 尺寸:6 mm x 3.1 mm x 1.9 mm 封裝 / 箱體: 封裝:Reel |
| HSDL-3310 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IrDA 1.3 Data Compliant 1.15Mb/s 3-5V Infrared Transceiver |
| HSDL-3310#007 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
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