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FMS6646 Datasheet, PDF (10/12 Pages) Fairchild Semiconductor – Six Channel, SD/HD (1080p) Video Filter Driver | |||
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Layout Considerations
General layout and supply bypassing play major roles
in high-frequency performance and thermal
characteristics. Fairchild offers a demonstration
board, FMS6646DEMO, to guide layout and aid
device testing and characteriza-tion.
The FMS6646DEMO is a four-layer board with a full
power and ground plane. Following this layout
conï¬gura-tion pro vides the optimum performance
and thermal char-acteristics. For best results, follow
the steps below as a basis for high-frequency layout:
 Include 0.01μF and 0.1μF ceramic bypass capacitors.
 Place the 0.01μF capacitor within 0.75 inches of the power pin.
 Place the 0.1μF capacitor within 0.1 inches of the power pin.
 For multi-layer boards, use a large ground plane to help dissipate heat.
 For two-layer boards, use a ground plane that extends beyond the device by at least 0.5 inches.
 Minimize all trace lengths to reduce series inductances.
© 2009 Fairchild Semiconductor Corporation
FMS6646 ⢠Rev.1.0.1
10
www.fairchildsemi.com
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