WM8761

Production Data

w

PD Rev 4.0 May 2004

17

APPLICATIONS INFORMATION

RECOMMENDED EXTERNAL COMPONENTS

VDD

GND

CAP

C

6

C

5

AGND

8

7

Hardware Control

WM8761

Notes:

1. C2, C5 should be positioned as close to the WM8761 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 20.

C

2

VDD

C

1

13

FORMAT

12

DEEMPH

VOUTR

9

C

3

VOUTL

C

4

AC-Coupled

VOUTR/L

to External LPF

10

MUTE

6

14

MCLK

3

BCKIN

2

DIN

Audio Serial Data I/F

AGND

1

LRCIN

5

+

+

Figure 19 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

C5

0.1

µF

C6

10

µF

Reference de-coupling capacitors for CAP pin

Table 7 External Components Description