EL5420T 데이터 시트보기 (PDF) - Intersil
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EL5420T Datasheet PDF : 17 Pages
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EL5420T
Power Supply Bypassing and Printed Circuit
Board Layout
The EL5420T can provide gain at high frequency, so good
printed circuit board layout is necessary for optimum
performance. Ground plane construction is highly
recommended, trace lengths should be as short as possible
and the power supply pins must be well bypassed to reduce
any risk of oscillation.
For normal single supply operation (the VS- pin is connected
to ground) a 4.7µF capacitor should be placed from VS+ to
ground, then a parallel 0.1µF capacitor should be connected
Revision History
DATE
9/25/09
REVISION
FN6838.0
Initial Release
as close to the amplifier as possible. One 4.7µF capacitor
may be used for multiple devices. For dual supply operation
the same capacitor combination should be placed at each
supply pin to ground.
For the QFN package, with exposed thermal pad, the pad
should be connected to the lowest potential, VS-, to optimize
thermal and operating performance. PCB vias should be
placed below the device’s exposed thermal pad to transfer
heat to the VS- plane and away from the device.
CHANGE
14
FN6838.0
September 25, 2009
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