User's Manual

SC14CVMDECT SF Cordless Voice Module
© 2012 Dialog Semiconductor B.V. 18 July 1, 2014 v1.6
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Figure 11 PP audio routing
Earpiece/Headset Mode
Idle Mode
ToneGen
SumUnit
TonegenAu_0
summ1
Mix_Ain_Tone
ECUnit
MicLevel
AnAgc
Analog AGC
ToneGen
SumUnit
TonegenAu_0
summ1
Mix_Ain_ToneEcho Canceller
EC1
type 2
A2_OUT
B2_IN
B1_OUT
A1_IN
VolSideToneUnit
Handsfree Mode
Speaker
VOLCTRL
digitaloutgain
Limiter
RMSdetector
summ2
VolSideTone
EqUnit_0
VolSideToneUnit
Earpiece
Earpiece
Rx Filters
PFILT 1-3 or
IIRSOS 1-3
Rx Filters
PFILT 1-3 or
IIRSOS 1-3
NC100Hz
RFI CancellerTx Filters
PFILT 1-3 or
IIRSOS 1-3
Pass Through
CodecUnit
EqUnit_0
EqUnit_1 RfiSuppUnit
Digital
Gain &
Limiter
Plvl
summ2
VolSideTone
ECUnit
MicLevel
AnAgc
Analog AGC
ToneGen
SumUnit
TonegenAu_0
summ1
Mix_Ain_ToneEcho Canceller
AEC/PAEC/
Handsfree
A2_OUT
B2_IN
B1_OUT
A1_IN
VolSideToneUnit
Rx Filters
PFILT 1-3 or
IIRSOS 1-3
NC100Hz
RFI CancellerTx Filters
PFILT 1-3 or
IIRSOS 1-3
Pass Through
CodecUnit
EqUnit_0
EqUnit_1 RfiSuppUnit
Digital
Gain &
Limiter
Plvl
summ2
VolSideTone
Noise
Gate
Noise Gate
NoiseGateUnit
Noise Gate only used together with PAEC
CNG
Comfort Noise
Generator
CngUnit
Comfort Noise Generator only used together with PAEC
Figure 12 Extended speakerphone for PP
Filters
3 x biquad
Microphone
Speaker
ClassD
Digital
Gain
VolSideTone
Peak
limiter
PAEC UNIT
Hfree
switch
x
x
RMS RMS
RMSRMS
PAEC
FFT
FFT
iFFT
PAEC engine
LMS
+
FIR
EC
gains
Filters
3 x biquad
Post gain
2x
Biquad
Air Interface
Rx Noise
Gate
Pre gain
Comfort
Noise
PAEC Rx Gain