WM8352 datasheet(75/336 Pages) WOLFSON

tên linh kiện	WM8352

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Production Data

WM8352

PD, February 2011, Rev 4.4

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

R11 (0Bh)

Power Mgmt

DACL_EN

Left DAC enable

0 = disabled

1 = enabled

R50 (32h)

DAC Digital

Volume Left

R11 (0Bh)

Power Mgmt

DACR_EN

Right DAC enable

0 = disabled

1 = enabled

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

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