參數(shù)資料
型號(hào)： 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(shù)： 33/70頁
文件大?。?/td> 639K
代理商： AK4632
ASAHI KASEI
[AK4632]
MS0396-E-00
2005/06
- 33 -
[3] Example of ALC1 Operation
Table 15 shows the example of the ALC1 setting. In case of this example, ALC1 operation starts from 0dB.
fs=8kHz
fs=16kHz
Data
1
00
0
01
Register Name Comment
Data
1
00
0
00
Operation
-4dBFS
Don’t use
Enable
16ms
Operation
-4dBFS
Don’t use
Enable
16ms
LMTH
LTM1-0
ZELM
ZTM1-0
Limiter detection Level
Limiter operation period at ZELM = 1
Limiter zero crossing detection
Zero crossing timeout period
Recovery waiting period
*WTM1-0 bits should be the same data
as ZTM1-0 bits
Maximum gain at recovery operation
IPGA gain at the start of ALC1 operation
Limiter ATT Step
Recovery GAIN Step
ALC1 Enable bit
WTM1-0
00
16ms
01
16ms
REF6-0
IPGA6-0
LMAT1-0
RATT
ALC1
47H
10H
00
0
1
+27.5dB
0dB
1 step
1 step
Enable
47H
10H
00
0
1
+27.5dB
0dB
1 step
1 step
Enable
Table 15. Examples of the ALC1 Setting
The following registers should not be changed during the ALC1 operation. These bits should be changed, after the ALC1
operation is finished by ALC1 bit =
“
0
”
or PMMIC bit =
“
0
”
.
LTM1-0, LMTH, LMAT1-0, WTM1-0, ZTM1-0, RATT, REF6-0, ZELM bits
When setting IPGA gain at the start of ALC1 operation, IPGA6-0 bits should be set while PMMIC bit is
“
1
”
and ALC1 bit
is
“
0
”
. When PMMIC bit =
“
1
”
, IPGA6-0 bits value aren’t reflected to IPGA. When ALC1 bit is changed from
“
1
”
to
“
0
”
,
IPGA holds the last gain value set automatically by ALC1 operation.
Manual Mode
* The value of IPGA should be
the same or smaller than REF’s
WR (ZTM1-0, WTM1-0, LTM1-0)
WR (REF6-0)
WR (IPGA6-0)
ALC1 Operation
WR (ALC1= “1”, LMAT1-0, RATT, LMTH, ZELM)
Example:
Limiter = Zero crossing Enable
Recovery Cycle = 16ms @ fs= 8kHz
Limiter and Recovery Step = 1
Maximum Gain = +27.5dB
Limiter Detection Level = -4dBFS
ALC2 bit = “1” (default)
(1) Addr=06H, Data=00H
(2) Addr=08H, Data=47H
(4) Addr=07H, Data=61H
(3) Addr=09H, Data=10H
Note : WR : Write
Figure 31. Registers set-up sequence at the ALC1 operation
相關(guān)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(guān)代理商/技術(shù)參數(shù)
參數(shù)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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*