參數(shù)資料
型號: AK4561VQ
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): 33/48頁
文件大?。?/td> 332K
代理商: AK4561VQ
ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Rev. 0.9
2000/09
- 33 -
n
Monaural Output
MOUT pin is provided to the output signal mixed by (L+R)/2 from analog volume (OPGA) by (L+R)/2 or the input signal
from BEEP pin. Then the mixed signal and the input signal from BEEP pin are added by 1:1.
Maximum output signal is –5.5dBV and load impedance is minimum 5k
. The input signal from signal is inverted.
These signals can be stopped when S11 bit is “0”. Then MOUT pin goes VCOM voltage and MOUT buffer becomes
Power-Save-Mode. (Refer to Figure 17)
When PD pin changes from “L” to “H” after power-up, MOUT pin is powered-up in normal operation. (Refer to Figure
16)
In the Power-Down-Mode ( PD pin = “L” or PM6 bit = “0”), output voltage of MOUT pin gradually change from AGND
to VCOM voltage by the time constants of an internal resistor (R1; typ.200k
) and an external capacitor (C1). (Refer to
Figure 18)
Figure 16. Normal Operation
Figure 17. Power-Save-Mode
Figure 18. Power-Down-Mode
+
-
R1
C1
R2
MOUT
S11
PM6
S11
S11
S11
+
-
R1
C1
R2
MOUT
S11
PM6
S11
S11
S11
+
-
R1
C1
R2
MOUT
S11
PM6
S11
S11
S11
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