WM8728

Product Preview

WOLFSON MICROELECTRONICS LTD

PP Rev 1.2 April 2001

27

RECOMMENDED DSD CONNECTIONS

CXD2751Q

WM8728EDS

BCKA

DSAR

DSAL

MCLK

DIN

LRCIN

64fs

Right Channel Data

Left Channel Data

Figure 32 Monophase Mode Connection Diagram

CXD2751Q

WM8728EDS

BCKA

BCKD

DSAR

DSAL

MCLK

DIN

LRCIN

64fs

BCKIN

128fs

Right Channel Data

Left Channel Data

Figure 33 Biphase Mode Connection Diagram

•

DSD mode is selected with the WM8728 by pulling the SCKDSD pin high while the MODE pin is held low.

•

DSD mode is hardware only operation.

•

The CXD2751Q from Sony is a signal processor for Super Audio CD playback.

RECOMMENDED ANALOGUE LOW PASS FILTER FOR PCM DATA FORMAT

(OPTIONAL)

+

_

+

+VS

-VS

10uF

51

Ω

7.5K

Ω

680pF

1.8k

Ω

47k

Ω

4.7k

Ω

4.7k

Ω

1.0nF

Figure 34 Recommended Low Pass Filter (Optional)