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WM8960CGEFL/V Scheda tecnica(PDF) 21 Page - Cirrus Logic

Il numero della parte WM8960CGEFL/V
Spiegazioni elettronici  Speaker and Headphone Drivers for Portable Audio Applications
PDF  94 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8960CGEFL/V Scheda tecnica(HTML) 21 Page - Cirrus Logic

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WM8960
Rev 4.4
21
LINPUT2
(MIC+ or line input)
LINPUT1
(MIC- or single ended MIC)
VMID
-17.25dB to
+30dB
LINPUT3
(MIC+ or line input)
VMID
Bypass path
to left output
mixer
Left Input
PGA
LINVOL[5:0]
(or ALC-controlled)
LMP2
(Open when muted)
LMP3
(Open when muted)
LINMUTE
(Closed when LMP2=0 & LMP3=0,
or when muted)
LIN2BOOST[2:0]
LIN3BOOST[2:0]
(Open when
LIN2BOOST[2:0]=000)
(Open when
LIN2BOOST[2:0]=000)
LI2LOVOL[2:0]
(Open when
LI2LOVOL[2:0]=000)
AINL &
LMIC
enable
+
Left Boost
Mixer
to Left
ADC
AINL
enable
LMN1
(Open when muted)
LMIC2B
Left Boost Mixer is muted
automatically when
LIN2BOOST=000 &
LIN3BOOST=000 &
LMIC2B=0
(Open when
input PGA is in
single-ended
mode or unused)
LINVOL[5:0]
or ALC
LMICBOOST
[1:0]
RINPUT2
(MIC+ or line input)
RINPUT1
(MIC- or single ended MIC)
VMID
-17.25dB to
+30dB
RINPUT3
(MIC+ or line input)
VMID
Bypass path
to right
output mixer
Right Input
PGA
RINVOL[5:0]
(or ALC-controlled)
RMP2
(Open when muted)
RMP3
(Open when muted)
RINMUTE
(Closed when RMP2=0 & RMP3=0,
or when muted)
RIN2BOOST[2:0]
RIN3BOOST[2:0]
(Open when
RIN2BOOST[2:0]=000)
(Open when
RIN2BOOST[2:0]=000)
RI2ROVOL[2:0]
(Open when
RI2ROVOL[2:0]=000)
AINR &
RMIC
enable
+
Right Boost
Mixer
to Right
ADC
AINR
enable
RMN1
(Open when muted)
RMIC2B
Right Boost Mixer is
muted automatically when
RIN2BOOST=000 &
RIN3BOOST=000 &
RMIC2B=0
(Open when
input PGA is in
single-ended
mode or unused)
RINVOL[5:0]
or ALC
RMICBOOST
[1:0]
Figure 8 Microphone Input PGA Circuit
The input PGAs and boost mixers are enabled by the AINL and AINR register bits. The microphone
PGAs can be also be disabled independently of the boost mixer to save power, using LMIC and RMIC
register bits.



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