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WM8994ECS/R Datenblatt(PDF) 121 Page - Cirrus Logic

Teilenummer WM8994ECS/R
Bauteilbeschribung  Multi-channel Audio Hub CODEC for Smartphones
PDF  363 Pages
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Hersteller  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8994ECS/R Datenblatt(HTML) 121 Page - Cirrus Logic

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WM8994
Rev 4.6
121
VOLUME SETTING
VOLUME (dB)
000
0
001
-3
010
-6
011
-9
100
-12
101
-15
110
-18
111
-21
Table 59 MIXOUTL and MIXOUTR Volume Range
SPEAKER MIXER CONTROL
The Speaker Mixer path select and volume controls are described in Table 60 for the Left Channel
(SPKMIXL) and Table 61 for the Right Channel (SPKMIXR).
Care should be taken when enabling more than one path to a speaker mixer in order to avoid clipping.
The gain of each input path is adjustable using a selectable -3dB control in each path to facilitate this.
Each Speaker Mixer output is also controlled by an additional independent volume control.
Note that the DAC input levels may also be controlled by the DAC digital volume controls (see
“Digital
to Analogue Converter (DAC)
”) and the Audio Interface digital volume controls (see “Digital Volume
and Filter Control
”).
When using the IN1LP or IN1RP signal paths to the speaker mixers, the buffered VMID reference
must be enabled, using the VMID_BUF_ENA register, as described in “Reference Voltages and
Master Bias
”.



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