參數(shù)資料
型號(hào)： GP2W0004XP
英文描述： Optoelectronic
中文描述： 光電
文件頁(yè)數(shù)： 8/15頁(yè)
文件大小： 127K
代理商： GP2W0004XP
GP2W0004YP/XP
Infrared Transceiver
8
IrDA Technical Information
Product Packaging
Many products that use infrared communication
locate their reception component behind dark plastic.
This often fits in with the overall design and coloring of
the product and has an intentional design purpose as
well.
The photodiode that is used in optical receivers is
sensitive to a range of light wavelengths, not only the
wavelength intended for reception. Visible light has
many component factors and sources in a room. The
dark plastic used in product faceplates can be formu-
lated to act as a highpass filter, reducing the amount of
visible light and other wavelengths landing on the pho-
todiode and raising the internal noise currents.
The reduction of unwanted wavelengths provides for
a quieter and more sensitive receiver. The wavelength
used for IrDA data communication is 880 nm.
The characteristic of any plastic used in a final product
should be kept in mind and not attenuated at this wave-
length.
Figure 14 shows the basic characteristic of a high-
pass filter. The exact position of the slope and increas-
ing response will depend on the material selected. The
intent is to surprise visible light and neighboring wave-
lengths, and pass the desired 880 nm.
Plastic filters are available on the market, and ven-
dors carry plastic materials that may be cut, bent, or
molded. The key to selecting a plastics vendor is to ask
about the wavelength characteristics of the materials.
The more the vendor knows, the more likely the vendor
will be able to help you in a knowledgeable manner
when working on both the industrial design and wave-
length pass characteristics of your IR window. If the
vendor does not know what you are talking about, you
need to find a knowledgeable source for filter materials.
Figure 14. Highpass Filter Characteristics
GP2W0004YP-13
100
90
80
70
60
R
U
V
B
G
Y
O
R
50
40
30
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10
0
300
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1,000
1,100
WAVELENGTH, nm
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GP2W0004XP0F 功能描述:MODULE IRDA 115.2KBPS 6SMD RoHS:是 類(lèi)別:傳感器，轉(zhuǎn)換器 >> IrDA 收發(fā)器模塊 系列:* 產(chǎn)品變化通告:Product Discontinuation 30/Sept/2009 產(chǎn)品目錄繪圖:GP2W Series 標(biāo)準(zhǔn)包裝:1 系列:* 數(shù)據(jù)速率:115.2kbs（SIR） 電源電壓:2.4 V ~ 3.6 V 無(wú)效電流，標(biāo)準(zhǔn)值@ 25° C:70µA 通信距離，低功率:20cm 方向:側(cè)視圖 工作溫度:-40°C ~ 85°C 尺寸:8.3mm x 2.1mm x 1.7mm 標(biāo)準(zhǔn):IrPHY 1.4 關(guān)機(jī):* 包裝:Digi-Reel® 其它名稱(chēng):425-2614-6
GP2W0004YP 功能描述:IRDA MODULE 115.2KBPS 6SMD RoHS:否 類(lèi)別:傳感器，轉(zhuǎn)換器 >> IrDA 收發(fā)器模塊 系列:* 產(chǎn)品變化通告:Product Discontinuation 30/Sept/2009 產(chǎn)品目錄繪圖:GP2W Series 標(biāo)準(zhǔn)包裝:1 系列:* 數(shù)據(jù)速率:115.2kbs（SIR） 電源電壓:2.4 V ~ 3.6 V 無(wú)效電流，標(biāo)準(zhǔn)值@ 25° C:70µA 通信距離，低功率:20cm 方向:側(cè)視圖 工作溫度:-40°C ~ 85°C 尺寸:8.3mm x 2.1mm x 1.7mm 標(biāo)準(zhǔn):IrPHY 1.4 關(guān)機(jī):* 包裝:Digi-Reel® 其它名稱(chēng):425-2614-6
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