Datasheet

RX_CLK
RXD[0-19]
TLK2541
www.ti.com SLLS779B –JANUARY 2008– REVISED APRIL 2008
TTL OUTPUT SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OH
High-level output voltage I
OH
= –1 mA, V
DD
= MIN 2.10 2.3 V
V
OL
Low-level output voltage I
OL
= 1 mA, V
DD
= MIN GND 0.25 0.5 V
t
r(slew)
Slew rate (rising), magnitude of RX_CLK, 0.8 V to 2 V, C = 5 pF, See Figure 3 0.5 V/ns
RXD[0:19]
t
f(slew)
Slew rate (falling), magnitude of RX_CLK, 0.8 V to 2 V, C = 5 pF, See Figure 3 0.5 V/ns
RXD[0:19]
50% voltage swing, TX_CLK = 100 MHz, 2.5
See Figure 3
t
su
RXD[0:19] setup to ↑ RX_CLK ns
50% voltage swing, TX_CLK = 130 MHz, 2.5
See Figure 3
50% voltage swing, TX_CLK = 100 MHz, 1.5
See Figure 3
t
h
RXD[0:19] hold to ↑ RX_CLK ns
50% voltage swing, TX_CLK = 130 MHz, 1.5
See Figure 3
Duty Cycle, RX_CLK See Figure 3 45% 50% 55%
Figure 3. TTL Data Output Valid Levels for AC Measurements
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