PI3HDMI511 datasheet(15/16 Pages) PERICOM

15 / 16 page

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P-0.2

07/10/12

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PI3HDMI511

HDMITM1.4 Redriver for Source-side Application

Requirements on the Decoupling Capacitors

i: There is no special requirement on the material of the capacitors. Ceramic capacitors are generally being used with typically

materials of X5R or X7R.

ii: 0.1uF decoupling capacitor in 0402 package is recommended.

Layout and Decoupling Capacitor Placement Consideration

i. Each 0.1μF decoupling capacitor should be placed as close as possible to each VDD pin.

ii. VDD and GND planes should be used to provide a low impedance path for power and ground.

iii. Via holes should be placed to connect to VDD and GND planes directly.

iv. The width between the traces should be as wide as possible.

v. Trace length should be as short as possible.

vi. The placement of decoupling capacitor and the way of routing trace should consider the power flowing criteria.

vii. 10μF capacitor should also be placed close to our part and should be placed in the middle location of 0.1μF capacitors.

viii. Avoid the large current circuit placed close to our part; especially when it is shared the same VDD and GND planes, since large

current flowing on our VDD or GND planes will generate a potential variation on the VDD or GND of our part.

Figure 6 Layout and Decoupling Capacitor Placement Diagram

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PI3HDMI511 Datasheet(PDF) 15 Page - Pericom Semiconductor Corporation