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LMK04826 Datasheet(PDF) 10 Page - Texas Instruments

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Part # LMK04826
Description  Ultra Low-Noise JESD204B Compliant Clock Jitter Cleaner
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LMK04826 Datasheet(HTML) 10 Page - Texas Instruments

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LMK04821, LMK04826, LMK04828
SNAS605AR – MARCH 2013 – REVISED DECEMBER 2015
www.ti.com
Thermal Information (continued)
LMK0482x
THERMAL METRIC(1)
NKD (WQFN)
UNIT
64 PINS
ψJT
Junction-to-top characterization parameter(5)
0.1
°C/W
ψJB
Junction-to-board characterization parameter(6)
3.5
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance(7)
0.7
°C/W
(5)
The junction-to-top characterization parameter,
ΨJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining RθJA, using a procedure described in JESD51-2a (sections 6 and 7).
(6)
The junction-to-board characterization parameter,
ΨJB estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining RθJA , using a procedure described in JESD51-2a (sections 6 and 7).
(7)
The junction-to-case(bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
7.5 Electrical Characteristics
(3.15 V < VCC < 3.45 V, –40 °C < TA < 85 °C and TPCB ≤ 105 °C. Typical values at VCC = 3.3 V, TA = 25 °C, at the
Recommended Operating Conditions and are not assured.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT CONSUMPTION
ICC_PD
Power Down Supply Current
1
3
mA
14 HSDS 8 mA clocks enabled
ICC_CLKS
Supply Current(1)
565
665
mA
PLL1 and PLL2 locked.
CLKin0/0*, CLKin1/1*, and CLKin2/2* INPUT CLOCK SPECIFICATIONS
fCLKin
Clock Input Frequency
0.001
750
MHz
SLEWCLKin
Clock Input Slew Rate (2)
20% to 80%
0.15
0.5
V/ns
VIDCLKin
Clock Input
0.125
1.55
|V|
Differential Input Voltage (3)
AC coupled
VSSCLKin
0.25
3.1
Vpp
Figure 8
AC coupled to CLKinX;
CLKinX* AC coupled to Ground
0.25
2.4
Vpp
CLKinX_TYPE = 0 (Bipolar)
Clock Input
VCLKin
Single-ended Input Voltage
AC coupled to CLKinX;
CLKinX* AC coupled to Ground
0.35
2.4
Vpp
CLKinX_TYPE = 1 (MOS)
Each pin AC coupled, CLKin0/1/2
0
|mV|
CLKinX_TYPE = 0 (Bipolar)
DC offset voltage between
CLKinX/CLKinX* (CLKinX* - CLKinX)
Each pin AC coupled, CLKin0/1
|VCLKinX-offset|
55
|mV|
CLKinX_TYPE = 1 (MOS)
DC offset voltage between
Each pin AC coupled
20
|mV|
CLKin2/CLKin2* (CLKin2* - CLKin2)
CLKinX_TYPE = 1 (MOS)
VCLKin- VIH
High input voltage
DC coupled to CLKinX;
2.0
VCC
V
CLKinX* AC coupled to Ground
VCLKin- VIL
Low input voltage
0.0
0.4
V
CLKinX_TYPE = 1 (MOS)
FBCLKin/FBCLKin* and Fin/Fin* INPUT SPECIFICATIONS
Clock Input Frequency for
AC coupled
fFBCLKin
0.001
750
MHz
0-delay with external feedback.
CLKinX_TYPE = 0 (Bipolar)
Clock Input Frequency for
AC coupled (4)
fFin
0.001
3100
MHz
external VCO or distribution mode.
CLKinX_TYPE = 0 (Bipolar)
(1)
See the applications section of Power Supply Recommendations for Icc for specific part configuration and how to calculate Icc for a
specific design.
(2)
In order to meet the jitter performance listed in the subsequent sections of this data sheet, the minimum recommended slew rate for all
input clocks is 0.5 V/ns. This is especially true for single-ended clocks. Phase noise performance will begin to degrade as the clock input
slew rate is reduced. However, the device will function at slew rates down to the minimum listed. When compared to single-ended
clocks, differential clocks (LVDS, LVPECL) will be less susceptible to degradation in phase noise performance at lower slew rates due to
their common mode noise rejection. However, it is also recommended to use the highest possible slew rate for differential clocks to
achieve optimal phase noise performance at the device outputs.
(3)
See Differential Voltage Measurement Terminology for definition of VID and VOD voltages.
(4)
Assured by characterization. ATE tested at 2949.12 MHz.
10
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Copyright © 2013–2015, Texas Instruments Incorporated
Product Folder Links: LMK04821 LMK04826 LMK04828


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