Table of Contents
Advertisement
®
Intel
855GME Chipset and Intel
6.1.4
DAC Routing Guidelines
Figure 75
Figure 75. GMCH DAC Routing Guidelines
VCCDACA1 VCCDACA2
Red
DAC
Channel
Green
DAC
Channel
Blue
D AC
Channel
Rset
presents the GMCH DAC routing guidelines.
1.5 V
C1
C2
37.5 Ω
1.5 V
impedance
D
RED
C1
D
RED#
37.5 Ω
1.5 V
impedance
D
GREEN
C1
D
GREEN#
37.5 Ω
1.5 V
impedance
D
BLUE
C1
D
BLUE#
IREF
VSSDACA
Place ESD diodes to
minimize power rail
inductance – place C1 as
close to diodes as possible
January 2007
®
6300ESB ICH Embedded Platform Design Guide
Integrated Graphics Display Port
Place C1 and C2
as close to package
as possible
Motherboard
FB
C
R1
FB
C
R1
FB
R1
C
Place components in
Close p roximity to VGA
75 Ω Routes
C
Pin 1 -
Red
75 Ω
Routes
Pin 2 -
Green
C
Pin 3 -
Blue
VGA
Connector
75 Ω
Routes
C
Do NOT route any high -
frequency signals in the
shaded area
155
Advertisement
Table of Contents
