HD74CDCV857 Datasheet, PDF (10/15 Pages) Hitachi Semiconductor – 2.5-V Phase-lock Loop Clock Driver

HD74CDCV857
Differential clock outputs are directly terminated by a 120 Ω resistor. Figure 2 is typical usage conditions
of outputs load.
V _DDQ
Device
under _OUT
test
OUT
V _DDQ
R_T=
120 Ω
C = 14 pF
C = 14 pF
Figure 2 Differential signal using direct termination resistor
CLKIN
CLKIN
FBIN
FBIN
t_SPE
Figure 3 Static phase error
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