gwixp425bdt Intel Corporation, gwixp425bdt Datasheet - Page 84

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

Intel
Figure 11.
5.2.4
Figure 12.
March 2005
84
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
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 m:.
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
AD10 and AF10. Ensure that both pins are connected as 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
pins of the IXP42X product line and IXC1100 control plane processors.
The grounds of both capacitors should be connected to the V
should be located less than 0.5 inch away from the V
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
CCOSCP
CCOSC
CCOSC
Power Filtering Diagram
Power Filtering Diagram
Requirement
3.3 V
1.3 V
Document Number: 252479, Revision: 005
10 nF
V
V
SS
SS
100 nF
170 nF
100 nF
V
V
V
CCOSC
CCOSCP
SSOSCP
SSOSCP
pin and the associated V
SSOSC
Intel
Product Line /
Intel
Figure
Intel
Control Plane
Product Line /
Intel
Control Plane
supply pin. Both capacitors
Processor
Processor
SSP_OSC
®
®
®
®
IXC1100
IXP42X
IXC1100
IXP42X
11.
B1676-03
B1675-04
consists of two pins,
SSOSC
Datasheet
CCOSC
pin.