參數(shù)資料
型號(hào): CLC014
廠商: National Semiconductor Corporation
英文描述: Adaptive Cable Equalizer for High-Speed Data Recovery(應(yīng)用于高速數(shù)據(jù)恢復(fù)的可調(diào)電纜均衡器)
中文描述: 高自適應(yīng)電纜均衡器高速數(shù)據(jù)恢復(fù)(應(yīng)用于高速數(shù)據(jù)恢復(fù)的可調(diào)電纜均衡器)
文件頁(yè)數(shù): 14/18頁(yè)
文件大?。?/td> 519K
代理商: CLC014
Typical Applications
(Continued)
the cable. A voltage divider is necessary to scale the voltage
to the required level at the input of the CLC014. This resistor
network also provides the correct impedance match for
twisted pair.
For Category 5 UTP, the approximate AEC voltage per
length is 3.75 mV/m (see
Block Description
). The CLC006
provides a trim adjust for fine tuning the output signal with
the resistor R. Refer to the CLC006/007 datasheet for tuning
directions.
DS100056-33
FIGURE 13. Twisted Pair Equalization
DS100056-34
FIGURE 14. Before and After Equalization at 622 Mbps
Through 50 Meters of Category 5 UTP
100
37.5
0.1
μ
MUTE
C
AEC
DI
DI
CD
DO
DO
AEC+
AEC-
100
75
CLC014
Adaptive Cable
Equalizer
75
Coax Cable
0.1
μ
V
cc
75
75
1N4148
0.1
μ
0.1
μ
F
43.3
86
50 – 75
minimum loss pad
270Mbps data through 300m
of Belden 8281 coax cable
800mV
pp
1ns/div
Can substitute a
75
resistor
Vertical scale: 200mV/div
End of cable before
equalization
1ns/div
Vertical scale: 200mV/div
End of cable after
equalization
Display
CSA907T
Pattern
2
23
-1
Tektronix
Data
CLK
Output
CSA907T
1.3V
pp
DS100056-35
FIGURE 15. Typical Measurement Setup
C
www.national.com
14
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