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參數(shù)資料
| 型號(hào)： | AK4673 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類(lèi)： | Codec |
| 英文描述： | Stereo CODEC with MIC/HP-AMP and Touch Screen Controller |
| 中文描述： | 立體聲編解碼器麥克風(fēng)/惠普- AMP及觸摸屏控制器 |
| 文件頁(yè)數(shù)： | 59/107頁(yè) |
| 文件大?。?/td> | 1171K |
| 代理商： | AK4673 |
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[AK4673]
MS0670-E-00
2007/09
- 59 -
■
Stereo Line Output (LOUT/ROUT pins)
When DACL bit is “1”, single-ended Lch/Rch signal of DAC is output from the LOUT/ROUT pins. 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=LOPS bits = “0”, the stereo line output enters power-down mode and the output is pulled-down to VSS1 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 VSS1 by
20k
Ω
after AC coupled as
Figure 45
. Rise/Fall time is 300ms(max) at C=1
μ
F and AVDD=3.3V. When PMLO bit = “1”
and LOPS bit = “0”, stereo line output is in normal operation.
LOVL bit set the gain of stereo line output.
When LOM bit = “1”, DAC output signal is output to LOUT and ROUT pins as (L+R)/2 mono signal.
When LOM3 bit = “1”, the signal selected by MICL3 and MICR3 bits (LIN3/RIN3 inputs or MIC-Amp outputs) to
LOUT and ROUT pins as (L+R)/2 mono signal.
“DACL”
DAC
LOUT pin
ROUT pin
“LOVL”
Figure 44. Stereo Line Output
LOPS
PMLO
0
1
0
1
Table 50. Stereo Line Output Mode Select (x: Don’t care)
Mode
LOUT/ROUT pin
Pull-down to VSS1
Normal Operation
Fall down to VSS1
Rise up to VCOM
(default)
Power-down
Normal Operation
Power-save
Power-save
0
1
LOVL
0
1
Gain
0dB
+2dB
Output Voltage (typ)
0.6 x AVDD
0.757 x AVDD
(default)
Table 51. Stereo Line Output Volume Setting
LOUT
ROUT
1
μ
F
220
Ω
20k
Ω
Figure 45. External Circuit for Stereo Line Output (in case of using Pop Reduction Circuit)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
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| AK4675EG | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/RCV/HP/SPK-AMP |
| AK4682 | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector |
| AK4682AEQ | 功能描述:IC CODEC MULTI-CHANNEL 48LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買(mǎi)時(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
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