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ICS9248-92 Scheda tecnica(PDF) 13 Page - Integrated Circuit Systems

Il numero della parte ICS9248-92
Spiegazioni elettronici  Mobile Pentium IITM System Clock Chip
PDF  14 Pages
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Produttore elettronici  ICST [Integrated Circuit Systems]
Homepage  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9248-92 Scheda tecnica(HTML) 13 Page - Integrated Circuit Systems

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ICS9248-92
Connections to VDD:
General Layout Precautions:
1) Use a ground plane on the top routing
layer of the PCB in all areas not used
by traces.
2) Make all power traces and ground
traces as wide as the via pad for lower
inductance.
Notes:
1 All clock outputs should have
provisions for a 15pf capacitor
between the clock output and series
terminating resistor. Not shown in all
places to improve readability of
diagram.
2 Optional crystal load capacitors are
recommended. They should be
included in the layout but not inserted
unless needed.
Component Values:
C1 : Crystal load values determined by user
C2 : 22F/20V/D case/Tantalum
AVX TAJD226M020R
C3 : 15pF capacitor
FB = Fair-Rite products 2512066017X1
All unmarked capacitors are 0.01F ceramic
3.3V Power Route
3.3V Power Route
2.5V Power Route
C3
C1
C1
C4
1
Clock Load
2
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Ferrite
Bead
VDD
C2
22µF/20V
Tantalum
Ferrite
Bead
VDD
C2
22µF/20V
Tantalum
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= Routed Power
= Ground Connection Key (component side copper)
= Ground Plane Connection
= Power Route Connection
= Solder Pads
= Clock Load



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