SNAA408
April 2025
LMK3H0102
1
Abstract
Trademarks
1
Introduction
2
Output Recommendations
2.1
Differential vs. Single-Ended
2.2
Slew Rate
2.3
Spread Spectrum Clocking
3
PCB Design
3.1
Stackup
3.2
Power Filtering
3.3
Avoid Bottlenecking
3.4
Strategic Via Placements
3.4.1
Distributing Power Concentrations
3.4.1.1
Via Sizes
3.4.1.2
Pads and Pours
3.4.2
Shielding and Stitching Vias
4
Minimize Possible Antennas
4.1
Stubs
4.2
Net Pours
5
Summary
6
References
6
References
Texas Instruments,
PCB Design for Reduced EMI
, application note
Texas Instruments,
High-Speed Layout Guidelines for Reducing EMI for LVDS SerDes Designs
, application note.
Texas Instruments,
Spread Spectrum Clocking Using the CDCS502/503
, application note.
Texas Instruments,
Time-Saving and Cost-Effective Innovations for EMI Reduction in Power Supplies
, marketing white paper.
Texas Instruments,
LMK3H0102 Reference-Less 2-Differential or 5-Single-Ended Output PCIe Gen 1-7 Compliant Programmable BAW Clock Generator
, data sheet.
Texas Instruments,
CDC6Cx Low Power LVCMOS Output BAW Oscillator
, data sheet.
Altium,
Designing a 6-Layer PCB Stackup for Enhanced EMC
, PCB design.
Würth Elektronik,
EMI Filter Designer
.