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| GX1 Datasheet, PDF (187/247 Pages) National Semiconductor (TI) – Processor Series Low Power Integrated x86 Solution | |||
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Electrical Specifications (Continued)
1
A
3.3V Plane
(VCC3)
3.3V Plane
(VCC3)
1.6V, 1.8V, or 2.0V Plane
(VCC2)
Geode⢠GX1
Processor
320 SPGA - Top View
1.6V, 1.8V, or 2.0V Plane
(VCC2)
37
A
3.3V Plane
(VCC3)
AN
1
To 2.9V
Regulator
Legend
= High frequency capacitor
= 220 µF, low ESR capacitor
= 3.3V connection
= 1.6V, 1.8V, or 2.0V connection
3.3V Plane
(VCC3)
AN
37
Note: Where signals cross plane splits, it is recommended to include
AC decoupling between planes with 47 pF capacitors.
Figure 6-2. SPGA Recommended Split Power Plane and Decoupling
Revision 1.0
187
www.national.com
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