LVCMOS

CDCLVP2108

R

S

V

+ V

IH

IL

2

V

=

th

V

IH

V

th

V

IL

CDCLVP2108

LVPECL

150 W

150 W

50 W

50 W

V

BB

(a)OutputDCTermination

(b)OutputACTermination

CDCLVP2108

LVPECL

130 W

82 W

130 W

82 W

V

CC

V

CC

CDCLVP2108

SCAS878C – MAY 2009 – REVISED JANUARY 2016

www.ti.com

Device Functional Modes (continued)

8.4.2 Input Termination

The CDCLVP2108 inputs can be interfaced with LVPECL, LVDS, or LVCMOS drivers. Figure 14 shows how to

LVCMOS driver; its value is calculated as the difference between the transmission line impedance and the driver

output impedance.

Figure 14. DC-Coupled LVCMOS Input to CDCLVP2108

Figure 15 shows how to DC-couple LVDS inputs to the CDCLVP2108. Figure 16 and Figure 17 describe the

16

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