PRIXP420ABC 885160 Intel, PRIXP420ABC 885160 Datasheet - Page 93

• Manufacturer Part Number: PRIXP420ABC 885160
• Manufacturer: Intel

Specifications of PRIXP420ABC 885160

• Lead Free Status / Rohs Status: Compliant

Design Checklist—Intel
Figure 36.
A.15.3
Figure 37.
A.15.4
December 2007
Document Number: 252817-008US
V
V
A single 170-nF capacitor must be connected between the V
pin of the IXP42X product line and IXC1100 control plane processors. This capacitor
value provides both bypass and filtering.
When 170 nF is an inconvenient size, capacitor values between 150 nF to 200 nF could
be used with little adverse effects, assuming that the effective series resistance of the
200-nF capacitor is under 50 mΩ.
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.
V
shown in
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 33 MHz — must be connected to
both of the V
processors.
The grounds of both capacitors should be connected to the V
capacitors should be located less than 0.5 inch away from the V
associated V
SSP_OSC
CCPLL2
CCOSCP
CCOSCP
CCOSC
®
IXP42X product line and IXC1100 control plane processors
Power Filtering Diagram
Power Filtering Diagram
consists of two pins, AD10 and AF10. Ensure that both pins are connected as
Figure
Requirement
Requirement
SSOSC
CCOSC
3.3 V
1.3 V
10 nF
37.
pin.
Intel
V
pins of the IXP42X product line and IXC1100 control plane
V
SS
SS
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
100 nF
170 nF
100 nF
V
V
V
V
CCOSCP
SSOSCP
SSOSCP
CCPLL2
V
SS
Intel
Intel
Intel
Product Line /
Control Plane
Product Line /
Control Plane
Intel
Processor
CCP_OSC
Processor
SSOSC
®
®
®
®
IXC1100
IXC1100
IXP42X
IXP42X
CCOSC
Hardware Design Guidelines
supply pin. Both
B1681-03
B1675-04
pin and V
pin and the
SSP_OSC
93