VSC7984
Datasheet
V
OH
Data Output
(OUT)
50% Crossing Point (PW floating)
V
OL
V
OH
Data Output
(OUT)
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25% Crossing Point
V
OL
V
OH
75% Crossing Point
Data Output
(OUT)
V
OL
Figure 7. Data Eye Crossing Point Control Diagram
t
S
Data
t
H
Clock
Figure 8. Setup and Hold Timing Diagram
DATA
300 mV
300 mV single-ended
data input voltage swing
CLK
400 mV
400 mV single-ended
clock input voltage swing
DATA
300 mV
DATAN
CLK
400 mV
CLKN
300 mV differential
data input voltage swing
(150 mV per side)
400 mV differential
clock input voltage swing
(200 mV per side)
Figure 9. Input Voltage Swing Diagram
9 of 16
VMDS-10029 Revision 4.1
January 19, 2007
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
