Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FMS6690 • Rev. 1.0.3 10
FMS6690 — Six Channel, 6
th
Order, SD/PS/HD Video Filter Driver
Layout Considerations
Layout and supply bypassing play major roles in high-
frequency performance and thermal characteristics.
Fairchild offers a demonstration board,
FMS6690DEMO, to use as a guide for layout and to aid
in device testing and characterization. The
FMS6690DEMO is a four-layer board with a full power
and ground plane. Following this layout configuration
provides the optimum performance and thermal
characteristics. For optimum results, follow these steps
as a basis for high-frequency layout:
 Include 10µF and 0.1F ceramic bypass
capacitors.
 Place the 10F capacitor within 0.75 inches of the
power pin.
 Place the 0.1F capacitor within 0.1 inches of the
power pin.
 For multi-layer boards, use a large ground plane to
help dissipate heat.
 For 2 layer boards, use a ground plane that
extends beyond the device by at least 0.5.
 Minimize all trace lengths to reduce series
inductances.