AK4671_10 Datasheet, PDF (109/166 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/RCV/HP-AMP

■ Phone Path
MIC-Amp
& ALC
MIC
A/D HPF
HPF
LPF
Stereo
Separation
5-band
Notch
ALC
MIX
Receiver
Headphone
Speaker
D/A
M
I
X
DATT
SMUTE
5-band
EQ
SVOLA
SDTO Lch
SDTO Rch
S ^{SDTI Lch}
E SDTI Rch
L
Audio
I/F
[AK4671]
CPU
SRC-A
SRC-B
SVOLB
DATT-B
DATT-C
BIVOL
SDTOA
SDTIA
PCM
I/F A
SDTOB
SDTIB
PCM
I/F B
TX
Baseband
RX
B/T
Phone Call TX
Phone Call TX Recording
Phone Call Side Tone
Phone Call RX
Phone Call RX Recording
Figure 94. Internal MIC/SPK or External MIC/HP Phone Call & Recoring
MS0666-E-02
- 109 -
2010/06