Texas Instruments LMK04828 User Guide

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SNAU145B–MAY 2013–Revised March 2018
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LMK04826 and LMK04828 User’s Guide
User's Guide
SNAU145B–MAY 2013–Revised March 2018
LMK04826 and LMK04828 User’s Guide
This user’s guide describes how to set up and operate the LMK04826/8 evaluation module (EVM). The
LMK04826/8 is the industry’s highest performance clock conditioner with JEDEC JESD204B support.
Contents
1 Evaluation Board Kit Contents ............................................................................................. 2
2 Quick Start.................................................................................................................... 3
3 PLL Loop Filters and Loop Parameters................................................................................... 9
4 Default TICS Pro Modes for the LMK0482x ............................................................................ 10
5 Using TICS Pro to Program the LMK0482x ............................................................................ 11
6 Evaluation Board Inputs and Outputs ................................................................................... 16
7 Recommended Test Equipment.......................................................................................... 19
Appendix A TICS Pro Usage ................................................................................................... 20
Appendix B Typical Phase Noise Performance Plots....................................................................... 29
Appendix C Schematics......................................................................................................... 39
Appendix D Bill of Materials .................................................................................................... 45
List of Figures
1 Quick Start Diagram......................................................................................................... 3
2 CLKout Page Description Diagram........................................................................................ 4
3 Continuous SYSREF Output ............................................................................................... 6
4 Pulsed SYSREF Output .................................................................................................... 7
5 Clock Outputs Page Setup for SYSREF Output on SDCLKout7...................................................... 8
6 Selecting a Default Mode for the LMK04828 Device.................................................................. 10
7 Selecting the LMK04828B ................................................................................................ 12
8 Loading the Device ........................................................................................................ 12
9 Setting the Default Mode for LMK04828 ................................................................................ 14
10 Setting Digital Delay, Clock Divider, Analog Delay and Output Format............................................. 15
11 TICS Pro - User Controls Page .......................................................................................... 21
12 TICS Pro - Raw Registers Page ......................................................................................... 22
13 TICS Pro - Set Modes Page .............................................................................................. 23
14 TICS Pro - CLKinX Control Page ........................................................................................ 24
15 TICS Pro - SYNC / SYSREF Page ...................................................................................... 25
16 TICS Pro - Clock Outputs Page.......................................................................................... 26
17 TICS Pro - Other Page .................................................................................................... 27
18 TICS Pro - Burst Page..................................................................................................... 28
19 Crystek CVHD-950-122.88 MHz VCXO Phase Noise at 122.88 MHz .............................................. 30
20 LMK04826 DCLKout2, VCO0, 245.76 MHz, Div8, LVPECL20 /w 240- Ω Emitter Resistor,
DCLKoutX_MUX=Divider, IDL=1, ODL=0, Balun = Prodyn BIB-100G.............................................. 31
21 LMK04826 DCLKout2, VCO0, 245.76 MHz, Div8, LVPECL20 /w 240- Ω Emitter Resistor,
DCLKoutX_MUX=Divider, IDL=1, ODL=0, Single Ended............................................................. 32
22 LMK04826 DCLKout2, VCO1, 245.76 MHz, Div10, LVPECL20 /w 240 ohm emitter resistor,
DCLKoutX_MUX=Divider, IDL=1, ODL=0, Balun = Prodyn BIB-100G.............................................. 33
23 LMK04826 DCLKout2, VCO1, 245.76 MHz, Div10 , LVPECL20 /w 240-Ω Emitter Resistor,
DCLKoutX_MUX=Divider, IDL=1, ODL=0, Single Ended............................................................. 34

Texas Instruments LMK04828 Specifications

General

Brand	Texas Instruments
Model	LMK04828
Category	Motherboard
Language	English