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LMK00308 Datasheet, PDF (8/25 Pages) Texas Instruments – 3-GHz 8-Output Differential Clock Buffer/Level Translator
Symbol
fCLKout_FS
fCLKout_RS
JitterADD
Noise Floor
DUTY
VOD
ΔVOD
VOS
ΔVOS
ISA
ISB
ISAB
tR
tF
Parameter
Conditions
Min
LVDS Outputs (CLKoutAn/CLKoutAn*, CLKoutBn/CLKoutBn*)
Maximum Output Frequency
Full VOD Swing
(Note 20, Note 21)
VOD ≥ 250 mV,
RL = 100 Ω differential
1.0
Maximum Output Frequency
Reduced VOD Swing
(Note 20, Note 21)
VOD ≥ 200 mV,
RL = 100 Ω differential
1.5
CLKin: 100 MHz, Slew
Additive RMS Jitter
Integration Bandwidth
1 MHz to 20 MHz
(Note 16)
Vcco = 3.3 V,
RL = 100 Ω
differential
rate ≥ 3 V/ns
CLKin: 156.25 MHz,
Slew rate ≥ 2.7 V/ns
CLKin: 625 MHz, Slew
rate ≥ 3 V/ns
CLKin: 100 MHz, Slew
Noise Floor
fOFFSET ≥ 10 MHz
Vcco = 3.3 V,
RL = 100 Ω
differential
rate ≥ 3 V/ns
CLKin: 156.25 MHz,
Slew rate ≥ 2.7 V/ns
CLKin: 625 MHz, Slew
rate ≥ 3 V/ns
Duty Cycle (Note 20)
50% input clock duty cycle
45
Output Voltage Swing
(Note 14)
250
Change in Magnitude of VOD for
TA = 25 °C,
-50
Complementary Output States
DC Measurement,
Output Offset Voltage
Change in Magnitude of VOS for
Complementary Output States
RL = 100 Ω differential
1.125
-35
Output Short Circuit Current
TA = 25 °C,
-24
Single Ended
Single ended outputs shorted to GND
Output Short Circuit Current
Differential
Complementary outputs tied together
-12
Output Rise Time
20% to 80%
Output Fall Time
80% to 20%
RL = 100 Ω differential
Typ Max
1.6
2.1
89
77
37
-159.5
-157.0
-152.7
55
400 450
50
1.25 1.375
35
24
12
175
175
Units
GHz
GHz
fs
dBc/Hz
%
mV
mV
V
mV
mA
mA
ps
ps
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