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參數(shù)資料
| 型號： | AK4367 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | OUTPUT MIXER & HP - AMP 24 BIT 2 CH DAC |
| 中文描述： | 輸出混音器 |
| 文件頁數(shù)： | 16/38頁 |
| 文件大?。?/td> | 433K |
| 代理商： | AK4367 |
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ASAHI KASEI
[AK4367]
MS0247-E-01
2004/11
- 23 -
3) LIN/RIN/MIN
→ HP-amp, MOUT
Power Supply
PDN pin
PMVCM bit
HPL/R pin
(6)
MOUT pin
(8)
MMUTE,
ATTM3-0 bit
10H(MUTE)
0FH(0dB)
(Hi-Z)
(8)
(6)
(7)
LIN/RIN/MIN pin
(4)
(Hi-Z)
PMHPL/R bit
Don’t care
(1) >150ns
(2) >0
(5) >2ms
MUTEN bit
PMMO bit
LINL, MINL,RINR, MINR
LINM, RINM, MINM bit
(3) >0
(5) >0
Figure 19. Power-up/down sequence of LIN/RIN/MIN, HP-amp and MOUT
(1) PDN pin should be set to “H” at least 150ns after the power is supplied. MCLK, BICK and LRCK can be stopped
when DAC is not used.
(2) PMVCM bit should be changed to “1” after PDN pin goes to “H”.
(3) LINL, MINL, RINR, MINR, LINM, RINM and MINM bits should be changed to “1” after PMVCM bit is changed to
“1”.
(4) When LINL, MINL, RINR, MINR, LINM, RINM or MINM bit is changed to “1”, LIN, RIN or MIN pin is biased to
0.45 x VDD voltage.
(5) PMHPL, PMHPR, MUTEN and PMMO bits should be changed to “1” at least 2ms (in case external capacitance at
VCOM pin is 2.2
F) after LINL, MINL, RINR, MINR, LINM, RINM and MINM bits are changed to “1”.
(6) Rise time of headphone amp is determined by external capacitor (C) of MUTET pin. The rise time up to VCOM/2 is
tr = 100k x C(typ). When C=1F, time constant is 100ms(typ).
(7) Fall time of headphone amp is determined by external capacitor (C) of MUTET pin. The fall time down to 0V is tf =
200k x C(typ). When C=1F, time constant is 200ms(typ).
PMHPL, PMHPR, LINL, MINL, RINR, MINR, LINM, RINM and MINM bits should be changed to “0” after HPL
and HPR pins go to VSS.
(8) When PMMO bit is changed, pop noise is output from MOUT pin.
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相關(guān)代理商/技術(shù)參數(shù) |
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| AK4367_05 | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 24-Bit 2ch DAC with HP-AMP & Output Mixer |
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| AK4367VNP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4368 | 制造商:AKM 制造商全稱:AKM 功能描述:PLL & HP-AMP DAC |
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