WM8728
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RECOMMENDED DSD CONNECTIONS
64fs
BCKA
MCLK
LRCIN
DIN
Right Channel Data
DSAR
DSAL
CXD2751Q
WM8728EDS
Left Channel Data
Figure 32 Monophase Mode Connection Diagram
128fs
BCKA
BCKIN
MCLK
LRCIN
DIN
64fs
BCKD
CXD2751Q
WM8728EDS
Right Channel Data
DSAR
DSAL
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)
4.7k
Ω
4.7k
Ω
+VS
_
51
Ω
10uF
1.8k
Ω
7.5KΩ
+
+
-VS
1.0nF
680pF
47k
Ω
Figure 34 Recommended Low Pass Filter (Optional)
WOLFSON MICROELECTRONICS LTD
PP Rev 1.2 April 2001
27
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
