Texas Instruments Evaluation Board for the LMP8602 LMP8602MAEVAL/NOPB LMP8602MAEVAL/NOPB データシート
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製品コード
LMP8602MAEVAL/NOPB
PCB Layout Guidelines
Figure 2. Power Supply Connectors and Headers
5
PCB Layout Guidelines
This section provides general practical guidelines for PCB layouts that use various power and ground
traces. Designers should note that these are only "rule-of-thumb" recommendations and the actual results
are predicated on the final layout.
traces. Designers should note that these are only "rule-of-thumb" recommendations and the actual results
are predicated on the final layout.
5.1
Differential Signals
The two input pins of the LMP860x form a differential pair that must be handled following the rules given
below:
below:
•
Keep both signals coupled by routing them closely together and keeping them of equal length.
•
Do not allow any other signal in between these two signals of the differential pair.
•
Keep all impedances in both traces of the signal equal.
5.2
Power, Ground, and De-Coupling
Keep the power supply de-coupling capacitor close to the power supply pin (V
S
of the part.)
Make sure all return currents of the signals can flow next to the originating signals.
3
SNOA545C – April 2009 – Revised April 2013
AN-1958 LMP860x SOIC Evaluation Board
Copyright © 2009–2013, Texas Instruments Incorporated