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8399
N/B Maintenance
N/B Maintenance
79
Integrated Graphics Power and Ground
Signal Name Pin # I/O Signal Description
VCCDAC
B2 P DAC Voltage. 3.3V ±5% connected via ferrite bead for
isolation of digital switching noise.
GNDDAC
C3, D4 P DAC Ground. Connect to main ground plane.
VCCRGB
A4 P Power for CRT RGB Outputs. 3.3V ±5% connected via
ferrite bead for isolation of digital switching noise
GNDRGB
B4 P
Connection point for RGB Load Resistors.
Connect to main
ground plane via ferrite bead for isolation of digital switching
noise.
VCCPLL1
D5 P Power for Graphics Controller PLL1 (“E-Clock”). 1.5V
±5% connected via ferrite bead for isolation of digital
switching noise.
GNDPLL1
C5 P
Ground for Graphics Controller PLL1 (“E-Clock”).
Connect to main ground plane via ferrite bead for isolation of
digital switching noise.
VCCPLL2
A5 P Power for Graphics Controller PLL2 (“D-Clock”). 1.5V
±5% connected via ferrite bead for isolation of digital
switching noise.
GNDPLL2
B5 P
Ground for Graphics Controller PLL2 (“D-Clock”).
Connect to main ground plane via ferrite bead for isolation of
digital switching noise.
VCCPLL3
A6 P Power for Graphics Controller PLL3 (“LCD Clock”). 1.5V
±5% connected via ferrite bead for isolation of digital
switching noise.
GNDPLL3
B6 P
Ground for Graphics Controller PLL3 (“LCD Clock”).
Connect to main ground plane via ferrite bead for isolation of
digital switching noise.
5.2 VIA K8N800 North Bridge(7)
MiTac Secret
Confidential Document