wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 74

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8351
13.7 DIGITAL TO ANALOGUE CONVERTER (DAC)
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The WM8351 contains a high-performance stereo DAC to convert digital audio signals to the
analogue domain. Audio data is passed to the WM8351 via the audio interface, and passes through
a variety of digital filtering stages before reaching the DAC. These include:
The audio DAC supports all commonly used audio sampling rates between 8kHz and 48kHz.
Figure 41 DAC Overview
R11 (0Bh)
Power Mgmt
4
R50 (32h)
DAC Digital
Volume Left
R11 (0Bh)
Power Mgmt
4
R51 (33h)
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
ADDRESS
•
•
Digital volume control
Digital filtering, interpolation and sigma-delta modulation functions needed for the DAC
BIT
15
15
4
5
DACL_EN
A
DACR_EN
A
LABEL
DEFAULT
0
0
Left DAC enable
0 = disabled
1 = enabled
Right DAC enable
0 = disabled
1 = enabled
DESCRIPTION
PD, June 2009, Rev 4.1
Production Data
74