參數(shù)資料
型號: AK4561
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16bit CODEC with built-in ALC and MIC/HP-Amp
中文描述: 16位編解碼器在ALC和內(nèi)置麥克風(fēng)/惠普放大器
文件頁數(shù): 30/48頁
文件大?。?/td> 332K
代理商: AK4561
ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Rev. 0.9
2000/09
- 30 -
FUNCTION DETAIL
n
MIC BLOCK
MIC block includes 2-inputs selectors, Internal MIC or External MIC Mode can be selected by S0 bit. (Refer to Figure 11
and Figure 12)
When Internal MIC is selected, the phase of HPF-Amp is inverted.
Figure 11. Internal path at selecting Internal MIC Mode (HPF OFF)
Figure 12. Internal path at selecting External MIC Mode (HPF OFF)
INT_MIC_L
EXT_MIC_L
+
-
+
-
Pre Amp
HPF
+
-
EQ Amp
+
-
S0
S0
S1
S1
EXT
Inv Amp
S0
EQ
To ALC
FromRch
To Rch
INT_MIC_L
EXT_MIC_L
+
-
+
-
Pre Amp
HPF
+
-
EQ Amp
+
-
S0
S0
S1
S1
EXT
Inv Amp
S0
EQ
To ALC
FromRch
To Rch
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