PI3HDX412BD

3.4Gbps HDMI 1.4b 1:2 Splitter/Demux with Equalization & Pre-emphasis

16

www.pericom.com

03/24/14

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Power Supply Decoupling Circuit

It is recommended to put 0.1 µF decoupling capacitors on each VDD pins of our part, there are four 0.1 µF decoupling

capacitors are put in Figure 1 with an assumption of only four VDD pins on our part, if there is more or less VDD pins

on our Pericom parts, the number of 0.1 µF decoupling capacitors should be adjusted according to the actual number

of VDD pins. On top of 0.1 µF decoupling capacitors on each VDD pins, it is recommended to put a 10 µF decoupling

capacitor near our part’s VDD, it is for stabilizing the power supply for our part. Ferrite bead is also recommended for

isolating the power supply for our part and other power supplies in other parts of the circuit. But, it is optional and de-

pends on the power supply conditions of other circuits.

Requirements on the De-coupling Capacitors

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

cally materials of X5R or X7R.

Recommended Power Supply Decoupling Capacitor Diagram

14-0020