參數(shù)資料
型號(hào)： GS9064ACKDE3
廠商： Gennum Corporation
英文描述： GS9064A HD-LINX㈢ II Adaptive Cable Equalizer
中文描述： GS9064A的HD - LINX進(jìn)程㈢II自適應(yīng)電纜均衡器
文件頁(yè)數(shù)： 12/16頁(yè)
文件大小： 266K
代理商： GS9064ACKDE3
GS9064A Data Sheet
37325 - 0
December 2005
12 of 16
Figure 4-1: Typical Output Voltage Levels
4.3 Programmable Mute Output and Cable Length Indicator
For SMPTE 259M inputs, the GS9064A incorporates a programmable threshold
output mute (MCLADJ) and an analog cable length indicator (CLI).
MCLADJ
In applications where there are multiple input channels using the GS9064A, it is
advantageous to have a programmable mute output to avoid signal crosstalk.
The output of the GS9064A 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.
CLI
The output voltage of the CLI pin is an approximation of the amount of cable
present at the GS9064A input. With 0m of cable, 800mV input signal levels, and a
data rate of 270Mb/s, the CLI output voltage is approximately 2.5V. As the cable
length increases, the CLI voltage decreases providing an approximate correlation
between the CLI voltage and cable length.
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS9064ACTDE3 制造商:Semtech Corporation 功能描述:SD/ASI Adaptive Equalizer
GS9064-CKD 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述:
GS9064-CKDE3 制造商:Gennum Corporation 功能描述:Cable Equalizer 16-Pin SOIC
GS9064-CTD 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述:
GS9064-CTDE3 制造商:Semtech Corporation 功能描述:SD/ASI Adaptive Equalizer
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