PI3HDMI101 datasheet(13/14 Pages) PERICOM

13 / 14 page

PS8924C

10/05/09

PI3HDMI101

1:1 Active HDMITM Redriver with

Optimized Equalization & I2C Buffer

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Requirements on the Decoupling Capacitors

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

als of X5R or X7R.

Layout and Decoupling CapacitorPlacement Consideration

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. Trace should be as wide as possible

Trace 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 closed 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 2 Layout and Decoupling Capacitor Placement Diagram

Pe r i c o m Par t

GN D Pl a n e

V DD P l a n e

0. 1uF

Bypass noise

Power Flow

09-0055

PI3HDMI101 데이터시트(PDF) 13 Page - Pericom Semiconductor Corporation