CDCFR83 Datasheet, PDF (9/12 Pages) Texas Instruments – DIRECT RAMBUS CLOCK GENERATOR

CLK
CLKB
CDCFR83
DIRECT RAMBUS CLOCK GENERATOR
SCAS665A – APRIL 2001 REVISED MARCH 2002
PARAMETER MEASUREMENT INFORMATION
tc(3)
tc(4)
Cycle-to-cycle jitter = | tc(3) – tc(4)| over 10000 consecutive cycles
Figure 3. Short Term Cycle-to-Cycle Jitter Over Four Cycles
CLK
CLKB
tpd(1)
Duty cycle = (tpd(1)/tc(5))
tc(5)
Figure 4. Output Duty Cycle
CLK
CLKB
tpd(2)
tc(6)
Duty cycle error = tpd(2) – tpd(3)
tc(7)
Figure 5. Duty Cycle Error (Cycle-to-Cycle)
tpd(3)
CLK
CLKB
Figure 6. Crossing-Point Voltage
VO(X)+
VO(X), _nom
VO(X)_–
80%
20%
tr
VOH
VOL
tf
Figure 7. Voltage Waveforms
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