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WM8523GEFL/V датащи(PDF) 28 Page - Wolfson Microelectronics plc

номер детали WM8523GEFL/V
подробное описание детали  24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
PDF  51 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8523GEFL/V датащи(HTML) 28 Page - Wolfson Microelectronics plc

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WM8523
Production Data
w
PD, Rev 4.1, August 2011
28
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.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R6
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
R7
DAC_GAINR
07h
8:0
DACR
_VOL[8:0]
R6
DAC_GAINL
06h
9
DACL_VU
0
DAC Digital Volume Update
0 = Latch DAC volume setting into
Register Map but do not update volume
1 = Latch DAC volume setting into
Register Map and update left and right
channels simultaneously
R7
DAC_GAINR
07h
9
DACR_VU
0
Table 13 DAC Digital Volume Control



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