Intel 815 - Manual (Page 62)

System Bus Design Guidelines
R
62 Intel
®
815 Chipset Platform Design Guide
Figure 27. Example PLL Filter Using a Discrete Resistor
Processor
PLL1
PLL2
C
L R
VCC
CORE
PLL_filter_1
Discrete resistor
<0.1 Ω route
<0.1 Ω route
Figure 28. Example PLL Filter Using a Buried Resistor
Processor
PLL1
PLL2
C
L R
VCC
CORE
PLL_filter_2
Trace resistance
<0.1 Ω route
<0.1 Ω route