Table of Contents
TABLE OF CONTENTS ..............................................................................................................................................................3
GENERAL DESCRIPTION ..........................................................................................................................................................5
Evaluation Board Kit Contents .................................................................................................................. 5
QUICK START ..........................................................................................................................................................................6
2. Select Device ......................................................................................................................................... 8
3. Program/Load Device ............................................................................................................................ 9
4. Restoring a Default Mode ...................................................................................................................... 9
6. Enable Clock Outputs .......................................................................................................................... 10
PLL 1 Loop Filter .................................................................................................................................... 12
25 MHz VCXO PLL ............................................................................................................................ 12
PLL2 Loop Filter ..................................................................................................................................... 13
RECOMMENDED TEST EQUIPMENT ...................................................................................................................................... 21
APPENDIX A: CODELOADER USAGE....................................................................................................................................... 22
Port Setup Tab.......................................................................................................................................... 22
Clock Outputs Tab ................................................................................................................................... 23
PLL1 Tab ................................................................................................................................................. 26
PLL2 Tab ................................................................................................................................................. 28
Bits/Pins Tab ............................................................................................................................................ 29
Registers Tab ........................................................................................................................................... 34
PLL1 ........................................................................................................................................................ 35
25 MHz VCXO Phase Noise ............................................................................................................... 35
Clock Outputs (CLKout).......................................................................................................................... 37
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Revised
December 2013
LMK04906 Family: Low-Noise Clock Jitter with Dual Loop PLLs
Copyright © 2013, Texas Instruments Incorporated
SNAU126A
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