W83772G
8. PCB LAYOUT GUIDE
Pin 3 & Pin 4 are typically connected to a thermal diode. Here are some recommendations for optimal
operation:
a) Place remote diode as close as possible to W83772G.
b) Route D+ and D- lines away from clock generators, memory buses, or any high frequency buses.
c) Place shield traces, which are connecting to board ground, flanking D+/D- to shield the noise.
d) It is recommended that the bypass capacitor with 2200pF should be placed close to W83772G to
filter the noise from motherboard digital signals.
e) Place a 0.1uF bypass capacitor close to the VCC pin.
The connection diagram is shown as the following.
D+
D-
W83772G
2200pf
GND
GND
Figure 3.
Publication Release Date: May 22, 2006
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Version: 1.0