PLL620-05/-06/-07/-08/-09
Low Phase Noise XO with multipliers (for 100-200MHz Fund or 3rdOT Xtal)
Universal Low Phase Noise IC’s
9. PECL Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
MAX.
UNITS
Output High Voltage
Output Low Voltage
VOH
VOL
VDD – 1.025
V
V
RL = 50 Ω to (VDD – 2V)
(see figure)
VDD – 1.620
19. PECL Switching Characteristics
PARAMETERS
Clock Rise Time
Clock Fall Time
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
tr
tf
@20/80% - PECL
@80/20% - PECL
0.6
0.5
1.5
1.5
ns
ns
PECL Levels Test Circuit
PECL Output Skew
OUT
VDD
OUT
50
50
Ω
Ω
2.0V
50%
OUT
tSKEW
OUT
PECL Transistion Time Waveform
DUTY CYCLE
45 - 55%
55 - 45%
OUT
80%
50%
20%
OUT
tR
tF
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