Figure 7 shows an AC-coupled, twisted pair cable applica-

tion. It implements a center tap capacitance termination

used in conjunction with two 50

Ω resistors to filter common

mode noise. R

Ω provides 1.25V of DC bias to

each input.

PECL or LVPECL drivers may be interfaced to the CLC001

as shown in Figure 8. The voltage divider network will reduce

the PECL output to the proper levels. For LVPECL, the 100

Ω

series resistors should be removed, since the common

mode range inputs of the CLC001 are wide enough to accept

LVPECL levels directly. No external DC biasing is required

for PECL/LVPECL connections.

10132907

FIGURE 7. Twisted Pair Cable, AC-coupled

10132908

FIGURE 8. PECL, DC-coupled

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