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WM8962B Datasheet(PDF) 110 Page - Wolfson Microelectronics plc

Part # WM8962B
Description  Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  295 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8962B Datasheet(HTML) 110 Page - Wolfson Microelectronics plc

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WM8962
110
Rev 4.3
The volume ramp rate during soft mute and un-mute is controlled by the DAC_MUTERATE bit as
shown in Table 63.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R5 (05h)
ADC & DAC
Control 1
4
DAC_MUTE_RAMP
1
DAC Soft Mute Control
0 = Muting the DAC
(DAC_MUTE = 1) will cause the
volume to change immediately to
mute.
1 = Muting the DAC
(DAC_MUTE = 1) will cause the
volume to ramp down gradually
to mute.
3
DAC_MUTE
1
Digital DAC Mute
0 = Un-mute
1 = Mute
Note that this bit also exists in
R49. Reading or writing to either
location has the same effect.
R49 (31h)
4
DAC_MUTE
1
Digital DAC Mute
0 = Un-mute
1 = Mute
Note that this bit also exists in
R5. Reading or writing to either
location has the same effect.
R6 (06h)
ADC & DAC
Control 2
3
DAC_UNMUTE_RAMP
1
DAC Soft Unmute Control
0 = Unmuting the DAC
(DAC_MUTE = 0) will cause the
volume to change immediately to
the DACL_VOL/DACR_VOL
settings.
1 = Unmuting the DAC
(DAC_MUTE = 0) will cause the
volume to ramp up gradually to
the DACL_VOL/DACR_VOL
settings.
2
DAC_MUTERATE
0
DAC Soft Mute Ramp Rate
0 = Fast ramp (maximum ramp
time 10.7ms)
1 = Slow ramp (maximum ramp
time 171ms).
Note that the ramp rate scales
with sample rate (fs). Quoted
values are correct for fs =
48kHz.
Table 63 DAC Soft-Mute Control



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