PRIXP425BD datasheet(76/112 Pages) INTEL

Part #	PRIXP425BD

Description	Intel짰 IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor

PDF	112 Pages

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Manufacturer	INTEL [Intel Corporation]

Direct Link	http://www.intel.com

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76 / 112 page

Intel® IXP42X Product Line and IXC1100 Control Plane Processor

Electrical Specifications

Datasheet

5.2.4

VCCOSC Requirement

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 33 MHz — must be connected to both of the

VCCOSC pins of the IXP42X product line and IXC1100 control plane processors.

The grounds of both capacitors should be connected to the VSSOSC supply pin. Both capacitors

should be located less than 0.5 inch away from the VCCOSC pin and the associated VSSOSC pin.

In order to achieve a 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.

Figure 10.

VCCOSCP Power Filtering Diagram

Intel® IXP4XX

Product Line /

Intel® IXC1100

Control Plane

Processor

3.3 V

170 nF

CCOSCP

SSOSCP

B1675-03

Figure 11.

VCCOSC Power Filtering Diagram

Intel® IXP4XX

Product Line /

Intel® IXC1100

Control Plane

Processor

1.3 V

10 nF

100 nF

B1676-02

PRIXP425BD Datasheet(PDF) 76 Page - Intel Corporation