參數(shù)資料
型號: AK4641VN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16 BIT CODEC WITH BLUETOOTH INTERFACE
中文描述: 16位編解碼器與藍牙接口
文件頁數(shù): 25/51頁
文件大?。?/td> 461K
代理商: AK4641VN
ASAHI KASEI
[AK4641]
MS0301-E-00
2004/05
- 31 -
STEREO LINE OUTPUT (LOUT and ROUT pins) and MONO LINE OUTPUT (MOUT2 pin)
ATT +
DAC of Stereo CODEC
Mic In
Volume
Stereo Line Out
AUX In
0dB/+20dB
IPGA
ATT
MICL bit
DACL bit
AUXL bit
Mono Line Out(MOUT2)
External Headphone Amp
External Speaker Amp
DAC of
Mono CODEC
DAC2 bit
Figure 28. Stereo Line Output and Mono Line Out2
Line out path does not have volume but the attenuator of DAC of Stereo CODEC, volume of Mic In and AUX In control
the output signal level. The AK4641 does not have mute circuits to remove pop noise at power up and down for Line
Output. The signal of the stereo mixer is converted to a mono signal [(L+R)/2] and this signal is output via MOUT2 pin.
MONO LINE OUTPUT (MOUT+/MOUT
pin)
DAC of
Mono CODEC
ATT +
DAC of Stereo CODEC
MIC In
0dB/+20dB
IPGA
MOUT+
1/2
17dB/+6dB
1/2
MICM bit
DACM bit
MOGN bit
ATT
MOUT
DAC2 bit
Figure 29. Mono Output
Mono mixer mixes signal from MIC In, Lch signal and Rch signal from DAC of Stereo CODEC. This mixed signal is
output from the MOUT+ and MOUT
pins by differential output. Amp for mono output has 6dB gain and 17dB gain
that are set by the MOGN bit.
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參數(shù)描述
AK4642 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ???£ Stereo CODEC with MIC/HP/SPK-AMP
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