WM8524

Production Data

w

PD, Rev 4.1, October 2011

20

APPLICATIONS INFORMATION

RECOMMENDED EXTERNAL COMPONENTS

Figure 15 Recommended External Components

Notes:

1.

Wolfson recommend using a single, common ground plane. Where this is not possible, care should be taken to

optimize split ground configuration for audio performance.

2.

Charge Pump fly-back capacitor C5 should be placed as close to WM8524 as possible, followed by Charge Pump

decoupling capacitor C1, then LINEVDD and VMID decoupling capacitors. See Recommended PCB Layout on p21.

3.

Capacitor types should be chosen carefully. Capacitors with very low ESR are recommended for optimum

performance.