Texas Instruments LMK04131 Clock Jitter Cleaner with Cascade PLL LMK04131EVAL/NOPB LMK04131EVAL/NOPB 데이터 시트

제품 코드

LMK04131EVAL/NOPB

L M K 0 4 1 X X - R E V 3 E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S

SNLU099

Table of Contents

................................................................................................................................... 3

................................................................................... 4

PLL 1 Loop Filter ....................................................................................................................................................... 4

PLL2 Loop Filter ........................................................................................................................................................ 4

122.88 MHz VCXO (Reference Input) ................................................................................... 4

........................................................................................... 5

................................................................................................ 8

Port Setup Tab ............................................................................................................................................................ 8

Clock Outputs Tab ...................................................................................................................................................... 9

PLL1 Tab .................................................................................................................................................................. 10

PLL2 Tab .................................................................................................................................................................. 11

Bits/Pins Tab ............................................................................................................................................................ 12

Registers Tab ............................................................................................................................................................ 14

......................................................... 15

PLL1 ......................................................................................................................................................................... 15

Crystek 122.88 MHz VCXO................................................................................................. 15

PLL2 ......................................................................................................................................................................... 16

Clock Outputs ........................................................................................................................................................... 17

Clock Output Measurement Technique ................................................................................ 17

LMK041x0 Phase Noise........................................................................................................................................... 18

LMK041x1 Phase Noise........................................................................................................................................... 19

LMK041x2 Phase Noise........................................................................................................................................... 20

LMK041x3 Phase Noise........................................................................................................................................... 21

PPENDIX

CHEMATICS

............................................................................................................ 22

Power ........................................................................................................................................................................ 22

Main ......................................................................................................................................................................... 23

Clock Outputs ........................................................................................................................................................... 24

....................................................................................... 25

PPENDIX

ILL OF

ATERIALS

................................................................................................ 26

Common Bill of Materials for Evaluation Boards .................................................................................................... 26

Bill of Material Custom to LMK04100BEVAL ....................................................................................................... 29

Bill of Material Custom to LMK04100BEVAL-XO ................................................................................................ 29

Bill of Material Custom to LMK04131BEVAL ....................................................................................................... 30

Bill of Material Custom to LMK04131BEVAL-XO ................................................................................................ 30

Bill of Material Custom to LMK04102BEVAL ....................................................................................................... 31

Bill of Material Custom to LMK04133BEVAL ....................................................................................................... 31

PPENDIX

ALUN

NFORMATION

............................................................................................... 32

Typical Balun Frequency Response ......................................................................................................................... 32

PPENDIX

VCXO/C

RYSTAL CHANGES

..................................................................................... 33

Changing from Crystal Resonator to VCXO ............................................................................................................ 33

Changing from VCXO to Crystal Resonator ............................................................................................................ 36

PPENDIX

LMK04100 .............................................................................................................. 39

......................................................................... 42

LPT Driver Loading ................................................................................................................................................. 42

Correct LPT Port/Address ........................................................................................................................................ 42

Correct LPT Mode .................................................................................................................................................... 43

PPENDIX

ROUBLESHOOTING

NFORMATION

........................................................................... 44

Confirm Communications ............................................................................................................................. 44

Confirm PLL1 operation/locking .................................................................................................................. 44

Confirm PLL2 operation/locking .................................................................................................................. 45