AK4560A Datasheet, PDF (28/47 Pages) Asahi Kasei Microsystems – 16bit CODEC with ALC and MIC/HP/SPK-Amps

ASAHI KASEI
[AK4560A]
FUNCTION DETAIL
n MIC BLOCK
MIC block includes 2-inputs selectors, Internal MIC or External MIC Mode can be selected by MIC bit. (Refer to Figure
12 and Figure 13)
From Rch
INT_MIC_L
60
EXT_MIC_L
59
62
63
1
-
+
INT/EXT _{Pre Amp}
64
2
61
3
4
5
-
+
ON
HPF OFF
HPF
EQ Amp
INT/EXT
+
-
HPF
To ALC1
Figure 12. Internal path at selecting Internal MIC Mode (HPF OFF)
From Rch
INT_MIC_L
60
EXT_MIC_L
59
62
63
1
-
+
INT/EXT _{Pre Amp}
64
2
61
3
4
5
-
+
HPF
ON
OFF
HPF
EQ Amp
INT/EXT
+
-
HPF
To ALC1
Figure 13. Internal path at selecting External MIC Mode (HPF OFF)
MS0028-E-00
- 28 -
2000/05