LMK00304_16 Datasheet, PDF (10/39 Pages) Texas Instruments – 3-GHz 4-Output Ultra-Low Additive Jitter Differential Clock Buffer/Level Translator

LMK00304
SNAS577F – FEBRUARY 2012 – REVISED MARCH 2016
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Electrical Characteristics (continued)
Unless otherwise specified: Vcc = 3.3 V ± 5%, Vcco = 3.3 V ± 5%, 2.5 V ± 5%, -40 °C ≤ T_A ≤ 85 °C, CLKin driven
differentially, input slew rate ≥ 3 V/ns. Typical values represent most likely parametric norms at Vcc = 3.3 V, Vcco = 3.3 V, T_A
= 25 °C, and at the Recommended Operation Conditions at the time of product characterization and are not ensured. ^{(1) (2)}
TEST CONDITIONS
MIN
TYP
MAX UNIT
t_R
Output Rise Time
20% to 80%⁽⁷⁾
R_T = 160 Ω to GND, Uniform transmission line up
t_F
Output Fall Time 80% to
20% ⁽⁷⁾
to 10 in. with 50-Ω characteristic impedance, R_L =
100 Ω differential C_L ≤ 5 pF
175
300 ps
175
300 ps
LVDS OUTPUTS (CLKoutAn/CLKoutAn*, CLKoutBn/CLKoutBn*)
f_{CLKout_FS}
Maximum Output
Frequency Full V_OD
Swing ^{(5) (10)}
V_OD ≥ 250 mV, R_L = 100 Ω differential
1.0
1.6
GHz
f_{CLKout_RS}
Maximum Output
Frequency
Reduced V_OD
Swing^{(5) (10)}
V_OD ≥ 200 mV, R_L = 100 Ω differential
1.5
2.1
GHz
Jitter_ADD
Additive RMS Jitter,
Integration Bandwidth
10 kHz to 20 MHz
(5) (11) (12)
R_L = 100 Ω differential
CLKin: 100 MHz,
Slew rate ≥ 3 V/ns
CLKin: 156.25 MHz,
Slew rate ≥ 3 V/ns
94
115
fs
70
90
Jitter_ADD
Additive RMS Jitter
Integration Bandwidth
1 MHz to 20 MHz⁽¹¹⁾
Vcco = 3.3 V,
R_L = 100 Ω differential
CLKin: 100 MHz,
Slew rate ≥ 3 V/ns
CLKin: 156.25 MHz,
Slew rate ≥ 2.7 V/ns
CLKin: 625 MHz,
Slew rate ≥ 3 V/ns
89
77
fs
37
CLKin: 100 MHz,
Slew rate ≥ 3 V/ns
-159.5
Noise Floor
DUTY
V_OD
ΔV_OD
V_OS
ΔV_OS
Noise Floor
f_OFFSET ≥ 10 MHz^{(14) (15)}
Duty Cycle⁽⁵⁾
Output Voltage Swing⁽⁶⁾
Change in Magnitude of
V_OD for Complementary
Output States
Output Offset Voltage
Change in Magnitude of
V_OS for Complementary
Output States
Vcco = 3.3 V,
R_L = 100 Ω differential
CLKin: 156.25 MHz,
Slew rate ≥ 2.7 V/ns
CLKin: 625 MHz,
Slew rate ≥ 3 V/ns
50% input clock duty cycle
T_A = 25 °C, DC Measurement, R_L = 100 Ω
differential
-157.0
45%
250
-152.7
400
-50
1.125
1.25
-35
dBc/Hz
55%
450 mV
50 mV
1.375 V
35 mV
I_SA
I_SB
Output Short Circuit
Current Single Ended
T_A = 25 °C, Single ended outputs shorted to GND
-24
I_SAB
Output Short Circuit
Current Differential
Complementary outputs tied together
-12
24 mA
12 mA
t_R
Output Rise Time
20% to 80%⁽⁷⁾
Uniform transmission line up to 10 inches with 50-
Ω characteristic impedance,
t_F
Output Fall Time
80% to 20%⁽⁷⁾
R_L = 100 Ω differential, C_L ≤ 5 pF
175
300
ps
175
300
ps
10
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