LM4752

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SNAS006E – FEBRUARY 1999 – REVISED APRIL 2013

LAYOUT AND GROUND RETURNS

Proper PC board layout is essential for good circuit performance. When laying out a PC board for an audio

power amplifer, particular attention must be paid to the routing of the output signal ground returns relative to the

input signal and bias capacitor grounds. To prevent any ground loops, the ground returns for the output signals

should be routed separately and brought together at the supply ground. The input signal grounds and the bias

capacitor ground line should also be routed separately. The 0.1

μF high frequency supply bypass capacitor

should be placed as close as possible to the IC.

PC BOARD LAYOUT—COMPOSITE

Figure 47.

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