Guide

Intel 852GM Platform Power Delivery Guidelines
R
230 Intel
®
852GM Chipset Platform Design Guide
VCCALVDS. VCCADAC, VCCAGPLL, and VCCALVDS do not require an RLC filter but do require
decoupling capacitors.
Figure 133. Example Analog Supply Filter
Low Pass Filtering
Noise
L
C
BULK
C
HIGH
V
CC
Filtered V
CC
*R
DAMP
*R
DAMP
*R
DAMP
is not required for all
filters
Table 94. Analog Supply Filter Requirements
Required
Intel 852GM
Filters
Rdamp Rdamp location L Cbulk Chigh
VCCASM None N/A 1210 1.0 µH DCRmax
0.169
Ωs
100 µF 0603 0.1 µF X5R
VCCQSM 1 Ω In series with Cbulk 0805 0.68 µH
DCRmax 0.80
Ωs
1206 4.7 µF
X5R
0603 0.1 µF X5R
VCCAHPLL None N/A None 0603 0.1 µF X5R
VCCADPLLA 1 Ω In series with
inductor
0805 0.10 µH 220uF 0603 0.1 µF X5R
VCCADPLLB 1 Ω In series with
inductor
0805 0.10 µH 220 µF 0603 0.1 µF X5R
VCCADAC None N/A None None 0603 0.1 µF X5R
0603 0.01 µF X5R
VCCAGPLL None N/A None None 0603 0.1 µF X5R
VCCALVDS None N/A None None 0603 0.1 µF X5R
0603 0.01 µF X5R