gwixp425bdt Intel Corporation, gwixp425bdt Datasheet - Page 83

• Manufacturer Part Number: gwixp425bdt
• Description: Intel Xp42x Product Line Of Network Processors And Ixc1100 Control Plane Processor
• Manufacturer: Intel Corporation

Figure 9.
5.2.2
Figure 10.
5.2.3
Datasheet
V
V
A parallel combination of a 10-nF capacitor — for bypass — and a 200-nF capacitor — for a first-
order filter with a cut-off frequency below 30 MHz — must be connected to the V
IXP42X product line and IXC1100 control plane processors.
The ground of both capacitors should be connected to the nearest V
should be located less than 0.5 inch away from the V
order to achieve the 200-nF capacitance, a parallel combination of two 100-nF capacitors may be
used as long as the capacitors are placed directly beside each other.
V
V
A single 170-nF capacitor must be connected between the V
IXP42X product line and IXC1100 control plane processors. This capacitor value provides both
bypass and filtering.
CCPLL1
CCPLL2
CCPLL2
CCOSCP
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
Power Filtering Diagram
Power Filtering Diagram
Requirement
Requirement
1.3 V
1.3 V
10 nF
10 nF
Document Number: 252479, Revision: 005
V
V
SS
SS
100 nF
100 nF
100 nF
100 nF
CCPLL2
V
V
CCPLL2
CCPLL1
V
V
SS
SS
CCP_OSC
pin and the associated V
Intel
Intel
Product Line /
Product Line /
Intel
Control Plane
Intel
Control Plane
SS
Processor
Processor
pin and V
®
®
supply pin. Both capacitors
®
®
IXC1100
IXC1100
IXP42X
IXP42X
B1680-03
B1681-03
SSP_OSC
CCPLL2
SS
March 2005
pin. In
pin of the
pin of the
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