參數(shù)資料
型號(hào)： AK4646EN
廠商： ASAHI KASEI POWER DEVICES CORP
元件分類： 消費(fèi)家電
英文描述： Stereo CODEC with MIC/SPK-AMP
中文描述： SPECIALTY CONSUMER CIRCUIT, PQCC32
封裝： 5 X 5 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, QFN-32
文件頁數(shù)： 47/79頁
文件大小： 789K
代理商： AK4646EN
[AK4646]
MS0557-E-02
2007/05
- 47 -
■
Stereo Line Output (LOUT/ROUT pins)
When DACL bit is “1”, Lch/Rch signal of DAC is output from the LOUT/ROUT pins which is single-ended. When
DACL bit is “0”, output signal is muted and LOUT/ROUT pins output VCOM voltage. The load impedance is 10k
Ω
(min.). When the PMLO bit = LOPS bit = “0”, the stereo line output enters power-down mode and the output is
pulled-down to AVSS by 100k
Ω
(typ). When the LOPS bit is “1”, stereo line output enters power-save mode. Pop noise at
power-up/down can be reduced by changing PMLO bit at LOPS bit = “1”. In this case, output signal line should be
pulled-down to AVSS by 20k
Ω
after AC coupled as Figure 32. Rise/Fall time is 300ms (max) at C=1
μ
F. When PMLO bit
= “1” and LOPS bit = “0”, stereo line output is in normal operation.
LOVL bit set the gain of stereo line output.
“DACL”
DAC
LOUT pin
ROUT pin
“LOVL”
Figure 31. Stereo Line Output
LOPS
PMLO
0
1
0
1
Table 40. Stereo Line Output Mode Select (x: Don’t care)
Mode
LOUT/ROUT pin
Pull-down to AVSS
Normal Operation
Fall down to AVSS
Rise up to VCOM
(default)
Power-down
Normal Operation
Power-save
Power-save
0
1
LOVL1-0 bits
00
01
10
11
Table 41. Stereo Line Output Volume Setting
Gain
0dB
+2dB
+4dB
+6dB
(default)
LOUT
ROUT
1
μ
F
220
Ω
20k
Ω
Figure 32. External Circuit for Stereo Line Output (in case of using Pop Reduction Circuit)
相關(guān)PDF資料
PDF描述
AK4647 Stereo CODEC with MIC/HP-AMP
AK4647VN Stereo CODEC with MIC/HP-AMP
AK4648 Stereo CODEC with MIC/HP/SPK-AMP
AK4648EC Stereo CODEC with MIC/HP/SPK-AMP
AK4650 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4646ENP-L 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:STEREO CODEC+SPK
AK4646EZ 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/SPK-AMP
AK4647 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP
AK4647VN 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP
AK4647VQ 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP-AMP
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