WM8523 datasheet(28/51 Pages) WOLFSON

No. de pieza	WM8523

Descripción Electrónicos	24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output

PDF	51 Pages

Scroll/Zoom	100%

Fabricante Electrónico	WOLFSON [Wolfson Microelectronics plc]

Página de inicio	http://www.wolfsonmicro.com

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WM8523

Production Data

PD, Rev 4.1, August 2011

Figure 23 SYS_ENA[1:0] Power Up and Down Sequences

DIGITAL VOLUME CONTROL

The WM8523 DAC includes digital volume control, allowing the digital gain to be adjusted between

−100dB and +12dB in 0.25dB steps. Volume update bits allow the user to write both left and right

channel volume changes before the volume is updated.

Digital volume control is only available in I2C

mode.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

DAC_GAINL

06h

8:0

DACL

_VOL[8:0]

110001000

DAC Digital Volume

0 0000 0000 = −100dB

0 0000 0001 = −99.75dB

0 0000 0010 = −99.5dB

…0.25dB steps

1 1001 0000 = 0dB

…0.25dB steps

1 1011 1110 = +11.75dB

1 11XX XXXX = +12dB

DAC_GAINR

07h

8:0

DACR

_VOL[8:0]

DAC_GAINL

06h

DACL_VU

DAC Digital Volume Update

0 = Latch DAC volume setting into

1 = Latch DAC volume setting into

channels simultaneously

DAC_GAINR

07h

DACR_VU

Table 13 DAC Digital Volume Control

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