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參數(shù)資料
| 型號： | 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進程- R的第二自適應電纜均衡器 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 284K |
| 代理商： | GS9074A |
GS9074A Data Sheet
34166 - 3
March 2006
12 of 16
Figure 4-1: Typical Output Voltage Levels
4.3 Programmable Mute Output
The GS9074A incorporates a programmable threshold output mute (MCLADJ).
In applications where there are multiple input channels using the GS9074A, it is
advantageous to have a programmable mute output to avoid signal crosstalk.
The output of the GS9074A can be muted when the input signal decreases below
a certain input level. This threshold is determined using the input voltage applied
to the MCLADJ pin. The MCLADJ pin may be left unconnected for applications
where output muting is not required.
This feature has been designed for use in applications such as routers where
signal crosstalk and circuit noise cause the equalizer to output erroneous data
when no input signal is present. The use of a Carrier Detect function with a fixed
internal reference does not solve this problem since the signal to noise ratio on the
circuit board could be significantly less than the default signal detection level set by
the on chip reference.
NOTE: MCLADJ is only recommended for data rates up to 360Mb/s.
4.4 Mute and Carrier Detect
The GS9074A includes a MUTE input pin that allows the application interface to
mute the serial digital output at any time. Set the MUTE pin HIGH to mute SDO and
SDO. In this case, the outputs will mute regardless of the setting of the BYPASS pin.
A Carrier Detect output pin (CD) indicates the presence of a valid signal at the input
of the GS9074A. When CD is LOW, the device has detected a valid input on SDI
and SDI. When CD is HIGH, the device has not detected a valid input.
NOTE: CD will only detect loss of carrier for data rates greater than 19Mb/s.
The CD output pin may be connected directly to the MUTE input pin to enable
automatic muting of the GS9074A when no valid input signal has been detected.
NOTE: If the maximum cable length is exceeded and the device is not in bypass
mode the GS1574A will not assert the CD pin even if a carrier is present.
50
50
SDO
SDO
+187.5mV
-187.5mV
V
CM
= 2.925V
typical
+187.5mV
-187.5mV
V
CM
= 2.925V
typical
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相關代理商/技術參數(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 標準包裝:1 系列:- 應用:2 通道 I²C 多路復用器 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） 供應商設備封裝: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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