4-Layer PCB Layout Guideline for HDMI Products
Generating printed circuit board (PCB) layout with care can compensate for or even prevent significant deviation from desired impedance of HDMI. This application note serves as a layout guideline, discussing general PCB knowledge—including knowledge of PCB prepreg selection, critical signal trace length, and microstrip stub effect—and impedance control on four-layer PCBs of 1080+2116 prepreg.
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