參數資料
型號： AK4632
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP
中文描述： 16位ツヒALC的單聲道編解碼器
文件頁數： 35/70頁
文件大小： 639K
代理商： AK4632
ASAHI KASEI
[AK4632]
MS0396-E-00
2005/06
- 35 -
MONO LINE OUTPUT (AOUT pin)
A signal of DAC is output from AOUT pin. When the DACA bit is
“
0
”
, this output is OFF. The load resistance is
10k
(min). When PMAO bit is
“
0
”
and AOPSN bit is
“
0
”
, the mono line output enters power-down and is pulled down by
100
(typ). If PMAO bit is controlled at AOPSN bit =
“
1
”
, POP noise will be reduced at power-up and down. Then, this
line should be pulled down by 20k
of resister after C-coupling shown in Figure 33. This rising and falling time is max
300 ms at C=1.0
μ
F . When PMAO bit is
“
1
”
and AOPSN bit is
“
0
”
, the mono line output enters power-up state.
AOUT
1
μ
F
220
20k
Figure 33. AOUT external circuit in case of using POP Reduction function.
AOUT Control Sequence in case of using POP Reduction Circuit
(2)
P M A O bit
A O P S N bit
A O U T pin
(1)
N orm al O utput
(3)
(4)
(5)
(6)
≥
300 m s
≥
300 m s
Figure 34. Mono Line Output Control Sequence in case of using POP Reduction function..
(1) Set AOPSN bit =
“
1
”
. Mono line output enters the power-save mode.
(2) Set PMAO bit =
“
1
”
. Mono line output exits the power-down mode.
AOUT pin rises up to VCOM voltage. Rise time is 200ms (max 300ms) at C=1
μ
F.
(3) Set AOPSN bit =
“
0
”
after AOUT pin rises up. Mono line output exits the power-save mode.
Mono line output is enabled.
(4) Set AOPSN bit =
“
1
”
. Mono line output enters power-save mode.
(5) Set PMAO bit =
“
1
”
. Mono line output enters power-down mode.
AOUT pin falls down to AVSS. Fall time is 200ms (max 300ms) at C=1
μ
F.
(6) Set AOPSN bit =
“
0
”
after AOUT pin falls down. Mono line output exits the power-save mode.
相關PDF資料
PDF描述
AK4632VN 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP
AK4633VN 16bit mono CODEC with MIC/SPK amplifier.
AK4633 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
AK4640 16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VG 16BIT CODEC WITH MIC /HP/SPK-AMPl
相關代理商/技術參數
參數描述
AK4632VN 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP
AK4633 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP
AK4633ENP-L 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A
AK4633VN 制造商:AKM 制造商全稱:AKM 功能描述:16bit mono CODEC with MIC/SPK amplifier.
AK4633VNP-L 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A
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