(Preliminary)
PL680-37/38/39
TYP.
355
38-640MHz Low Phase Noise XO
8. LVDS Electrical Characteristics
PARAMETERS
Output Differential Voltage
V
DD
Magnitude Change
Output High Voltage
Output Low Voltage
Offset Voltage
Offset Magnitude Change
Power-off Leakage
Output Short Circuit Current
SYMBOL
V
OD
∆V
OD
V
OH
V
OL
V
OS
∆V
OS
I
OXD
I
OSD
CONDITIONS
MIN.
247
-50
MAX.
454
50
UNITS
mV
mV
V
V
V
mV
uA
mA
R
L
= 100
Ω
(see figure)
1.4
0.9
1.125
0
1.1
1.2
3
±1
-5.7
1.6
1.375
25
±10
-8
V
out
= V
DD
or GND
V
DD
= 0V
9. LVDS Switching Characteristics
PARAMETERS
Differential Clock Rise Time
Differential Clock Fall Time
SYMBOL
t
r
t
f
CONDITIONS
R
L
= 100
Ω
C
L
= 10 pF
(see figure)
MIN.
0.2
0.2
TYP.
0.7
0.7
MAX.
1.0
1.0
UNITS
ns
ns
LVDS Levels Test Circuit
OUT
LVDS Switching Test Circuit
OUT
50Ω
C
L
= 10pF
V
OD
V
OS
V
DIFF
R
L
= 100Ω
50Ω
C
L
= 10pF
OUT
OUT
LVDS Transistion Time Waveform
OUT
0V (Differential)
OUT
80%
V
DIFF
20%
0V
80%
20%
t
R
t
F
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Rev 11/28/05 Page 6
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