Rainbow Electronics CLC001 - Manual (Page 6)

Device Operation
(Continued)
Figure 5 shows the CLC001 with an AC-coupled, single
ended input connection. The 82.5
Ω resister in parallel
with 825
Ω
gives the equivalent termination resistance of
75
Ω
. R
BB
set at 5k
Ω
provides 1.25V of DC bias to the
input.
A typical DC-coupled, twisted pair cable connection is
shown in
Figure 6. The CLC001 is driven differentially.
The line is terminated with a termination resistor equal to
the impedance of the line being driven. The actual resistor
value is media specific, but typically is between 100 and
120
Ω
depending upon the cable. This resistor should be
located close to the CLC001 inputs pins to minimize the
resulting stub length between the resistor and device
pads.
DS101329-5
FIGURE 5. Single Ended 75
Ω
Coaxial Cable, AC-coupled
DS101329-6
FIGURE 6. Twisted Pair Cable, DC-coupled
CLC001
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