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AS1341

Datasheet - A p p l i c a t i o n I n f o r m a t i o n

9.11 PC Board Layout and Grounding

High switching frequencies and large peak currents make PC board layout an important part of AS1341-based designs. Good PCB layout can

avoid switching noise being introduced into the feedback path, resulting in jitter, instability, or degraded performance.

- High-power traces (see Figure 22 on page 10) should be as short and wide as possible.

to avoid radiated noise. Connect the ground pins of these power components at a common node in a star-ground configuration.

- Separate noisy traces, such as the LX node, from the feedback network with grounded copper.

- Keep the extra copper on the PCB and integrate it into a pseudo-ground plane.

- When using external feedback, place the resistors as close to pin FB as possible to minimize noise coupling.