Intel 740 User Manual

Addin Card Design
2-10
Intel740™ Graphics Accelerator Design Guide
Gr
2.2.3.4 Decoupling
Decou
p
lin
g
ca
p
acitors should ideall
y
be
p
laced as close as
p
ossible to the Intel740
g
ra
p
hics
accelerator. This means that the best decou
p
lin
g
will occur if the ca
p
acitors are
p
laced directl
y
underneath the com
p
onent. If a sin
g
le sided board is re
q
uired and ca
p
acitors cannot be
p
laced
underneath the com
p
onent then decou
p
lin
g
is recommended at the corners of the Intel740
g
ra
p
hics
accelerator
p
acka
g
e. At least a 0.1
µ
F and 0.01
µ
F are recommended for each corner. B
y
p
lacin
g
the ca
p
acitors in this location all of the traces can “break-out” from the BGA
p
acka
g
e on all four
sides.
Figure 2-9. Suggested VCC Planes for the Intel740™ Graphics Accelerator
VCC2
VCC3
VCC2 on VCC Layer
VCC3 on Secondary Side
Signal Layer
vcc_pl.vsd
Figure 2-10. Intel740™ Graphics Accelerator Decoupling
0.1uF
0.01uF
0.1uF
0.01uF
0.1uF
0.01uF
0.1uF
0.01uF
Intel740
Graphics
Accelerator
(468 BGA)

Intel 740 Specifications

General

Brand	Intel
Model	740
Category	Video Card
Language	English