wm9711lgefl-v Wolfson Microelectronics plc, wm9711lgefl-v Datasheet - Page 35
wm9711lgefl-v
Manufacturer Part Number
wm9711lgefl-v
Description
Low Power Audio Codec For Portable Applications
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM9711LGEFL-V.pdf
(65 pages)
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Production Data
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SPEAKER MIXER
The speaker mixer drives the LOUT2 and ROUT2 output. The following signals can be mixed into the
speaker path:
•
•
•
•
•
In a typical smartphone application, the speaker signal is a mix of AUXDAC (for system alerts or ring
tone playback), PHONE (for speakerphone function), and PC_BEEP (for externally generated ring
tones).
MONO MIXER
The mono mixer drives the MONOOUT pin. The following signals can be mixed into MONOOUT:
•
•
•
•
•
•
In a typical smartphone application, the MONOOUT signal is a mix of the amplified microphone
signal (possibly with Automatic Gain Control) and (if enabled) an audio playback signal from the
stereo DAC or the auxiliary DAC.
SIDE TONE CONTROL
The side tone path is into the headphone mixer and is either from the MIC or ALC path (with no 20dB
boost)
Table 23 Side Tone Control
14h
Sidetone
Control
REGISTER
ADDRESS
PHONE (controlled by register 0Ch, see “Audio Inputs”)
LINE_IN (controlled by register 10h, see “Audio Inputs”)
the stereo DAC signal (controlled by register 18h, see “Audio DACs”)
PC_BEEP (controlled by register 0Ah, see “Audio Inputs”)
the AUXDAC signal (controlled by register 12h, see “Auxiliary DAC”)
LINE_IN (controlled by register 10h, see “Audio Inputs”)
the output of the Record PGA (see “Audio ADC”, “Record Gain”)
the stereo DAC signal (controlled by register 18h, see “Audio DACs”)
the MIC signal (controlled by register 10h, see “Audio Inputs”)
PC_BEEP (controlled by register 0Ah, see “Audio Inputs”)
the AUXDAC signal (controlled by register 12h, see “Auxiliary DAC”)
15
14:12
11:10
9:7
BIT
STM
STVOL
ALCM
ALCVOL
LABEL
1
010
(0dB)
11
010
(0dB)
DEFAULT
MIC side tone select
0: selected
1 : not selected (path muted)
MIC Sidetone volume
000 : +6dB (max.)
001: +3dB
… (3dB steps)
111 : -15dB (min.)
ALC side tone select
11: mute
10: mono – left
01: mono – right
00: stereo
ALC Sidetone volume
Similar to STVOL
DESCRIPTION
PD Rev 4.3 August 2006
WM9711L
35
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