WM9714CLGEFLSLASHV datasheet(41/120 Pages) CIRRUS

41 / 120 page

WM9714L

Rev 4.0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

3Ch

Powerdown (1)

VXDAC

VXDAC Disable Control

1 = Disabled

0 = Enabled

18h

VXDAC Output

Control

V2H

VXDAC to Headphone Mixer Mute

Control

1 = Mute

0 = No mute

14:12

V2HVOL

010

(0dB)

VXDAC to Headphone Mixer Volume

Control

000 = +6dB

… (+3dB steps)

111 = -15dB

V2S

VXDAC to Speaker Mixer Mute

Control

1 = Mute

0 = No mute

10:8

V2SVOL

010

(0dB)

VXDAC to Speaker Mixer Volume

Control

000 = +6dB

… (+3dB steps)

111 = -15dB

V2M

VXDAC to Mono Mixer Mute Control

1 = Mute

0 = No mute

6:4

V2MVOL

010

(0dB)

VXDAC to Mono Mixer Volume

Control

000 = +6dB

… (+3dB steps)

111 = -15dB

Table 19 VXDAC Control

AUXILIARY DAC

AUXDAC is a simple 12-bit mono DAC. It can be used to generate DC signals (with the numeric input

written into a control register), or AC signals such as telephone-quality ring tones or system beeps

(with the input signal supplied through an AC-Link slot). In AC mode (XSLE = 1), the input data is

binary offset coded; in DC mode (XSLE = 0), there is no offset.

The analogue output of AUXDAC is routed directly into the output mixers. The signal gain into each

mixer can be adjusted at the mixer inputs using control register 12h. In slot mode (XSLE = 1), the

AUXDAC also supports variable sample rates (See

“Variable Rate Audio / Sample Rate Conversion”).

When not in use the auxiliary DAC can be powered down using the Powerdown register bit AUXDAC

(register 3Ch, bit 11).

WM9714CLGEFL/V Datasheet(PDF) 41 Page - Cirrus Logic

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