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參數(shù)資料
| 型號(hào)： | GS9074A |
| 廠商： | Gennum Corporation |
| 英文描述： | GS9074A HD-LINX-R II Adaptive Cable Equalizer |
| 中文描述： | GS9074A的HD - LINX進(jìn)程- R的第二自適應(yīng)電纜均衡器 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 284K |
| 代理商： | GS9074A |
GS9074A Data Sheet
34166 - 3
March 2006
11 of 16
4. Detailed Description
The GS9074A is a high speed BiCMOS IC designed to equalize serial digital
signals.
The GS9074A can equalize SD serial digital signals, and will typically equalize
greater than 350m at 270Mb/s.
The GS9074A is powered from a single +3.3V power supply and consumes
approximately 215mW of power.
4.1 Serial Digital Inputs
The serial data signal may be connected to the input pins (SDI/SDI) in either a
differential or single ended configuration. AC coupling of the inputs is
recommended, as the SDI and SDI inputs are internally biased at approximately
1.8V.
4.2 Cable Equalization
The input signal passes through a variable gain equalizing stage whose frequency
response closely matches the inverse of the cable loss characteristic. In addition,
the variation of the frequency response with control voltage imitates the variation
of the inverse cable loss characteristic with cable length.
The edge energy of the equalized signal is monitored by a detector circuit which
produces an error signal corresponding to the difference between the desired edge
energy and the actual edge energy. This error signal is integrated by both an
internal and an external AGC filter capacitor providing a steady control voltage for
the gain stage. As the frequency response of the gain stage is automatically varied
by the application of negative feedback, the edge energy of the equalized signal is
kept at a constant level which is representative of the original edge energy at the
transmitter. The equalized signal is also DC restored, effectively restoring the logic
threshold of the equalized signal to its correct level independent of shifts due to AC
coupling. The digital output signals have a nominal voltage of 750mV
pp
differential,
or 375mV
pp
single ended when terminated with 50
Ω
as shown in
Figure 4-1
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GS9074A_09 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HD-LINX II Adaptive Cable Equalizer |
| GS9074ACNE3 | 功能描述:RF, RFID, WIRELESS RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| GS9074ACTE3 | 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:SD/ASI Adaptive Equalizer |
| GS9075A | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS1575A / GS9075A HD-LINX-R II Multi-Rate SDI Automatic Reclocker |
| GS9075ACNE3 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS1575A / GS9075A HD-LINX-R II Multi-Rate SDI Automatic Reclocker |
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