Intel 855GME User Manual

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

Intel 855GME Specifications

General

Brand	Intel
Model	855GME
Category	Computer Hardware
Language	English