Production Data
WM8352
13.7 DIGITAL TO ANALOGUE CONVERTER (DAC)
The WM8352 contains a high-performance stereo DAC to convert digital audio signals to the
analogue domain. Audio data is passed to the WM8352 via the audio interface, and passes through
a variety of digital filtering stages before reaching the DAC. These include:
.
.
Digital volume control
Digital filtering, interpolation and sigma-delta modulation functions needed for the DAC
The audio DAC supports all commonly used audio sampling rates between 8kHz and 48kHz.
Figure 41 DAC Overview
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Left DAC enable
R11 (0Bh)
4
DACL_EN
A
0
Power Mgmt
4
0 = disabled
1 = enabled
R50 (32h)
15
DAC Digital
Volume Left
R11 (0Bh)
Power Mgmt
R51 (33h)
5
DACR_EN
A
0
Right DAC enable
0 = disabled
1 = enabled
15
DAC Digital
Volume Right
Note: These bits can be accessed through R11 or through R50/R51. Reading from or writing to
either register location has the same effect.
Table 31 DAC Enable
PD, February 2011, Rev 4.4
75
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
