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WM8523 Datasheet(PDF) 29 Page - Wolfson Microelectronics plc

Part # WM8523
Description  24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
PDF  51 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8523 Datasheet(HTML) 29 Page - Wolfson Microelectronics plc

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Production Data
WM8523
w
PD, Rev 4.1, August 2011
29
VOLUME CHANGE MODES
Volume can be adjusted by step change (either using zero cross or not) or by soft ramp. The volume
change mode is controlled by the DAC_VOL_DOWN_RAMP and DAC_VOL_UP_RAMP bits in R5:
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R5
DAC_CTRL3
05h
0
DAC_VOL
_DOWN_
RAMP
1
DAC Digital Volume Decrease Control
0 = apply volume decreases instantly (step)
1 = ramp volume decreases
1
DAC_VOL
_UP_
RAMP
0
DAC Digital Volume Increase Control
0 = apply volume increases instantly (step)
1 = ramp volume increases
Table 14 Volume Ramp Control
Figure 24 illustrates the effect of the volume ramp:
Figure 24 Volume Ramp Functionality



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