WM8727

Production Data

w

PD Rev 4.2 July 2006

13

APPLICATIONS INFORMATION

RECOMMENDED EXTERNAL COMPONENTS

VDD

GND

7

6

WM8727

Notes: 1. C2 should be positioned as close to the WM8727 as possible.

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

3. C3 and C4 not required if using the recommended low pass filter in Figure 9.

C

2

VDD

C

1

VOUTR

8

C

3

VOUTL

C

4

AC-Coupled

VOUTR/L

to External LPF

5

4

MCLK

2

BCKIN

1

DIN

Audio Serial Data I/F

AGND

3

LRCIN

+

Figure 10 External Component Diagram

RECOMMENDED EXTERNAL COMPONENTS VALUES

COMPONENT

REFERENCE

SUGGESTED

VALUE

DESCRIPTION

C1

10

µF

De-coupling for VDD

C2

0.1

µF

De-coupling for VDD

C3 and C4

10

µF

Output AC coupling caps to remove midrail DC level from outputs

Table 3 External Components Description