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)： 50/70頁
文件大?。?/td> 639K
代理商： AK4632
ASAHI KASEI
[AK4632]
MS0396-E-00
2005/06
- 50 -
Addr
06H
Register Name
Timer Select
Default
D7
D6
D5
ZTM1
0
D4
ZTM0
0
D3
D2
D1
LTM1
0
D0
LTM0
0
DVTM
0
ROTM
0
WTM1
0
WTM0
0
LTM1-0: ALC1 limiter operation period at zero crossing disable (ZELM bit =
“
1
”
) (See Table 35)
The IPGA value is changed immediately. When the IPGA value is changed continuously, the change is done
by the period specified by the LTM1-0 bits. Default is
“
00
”
(0.5/fs).
ALC1 Limiter Operation Period
8kHz
63
μ
s
125
μ
s
250
μ
s
500
μ
s
LTM1 bit LTM0 bit
16kHz
31
μ
s
63
μ
s
125
μ
s
250
μ
s
Default
0
0
1
1
0
1
0
1
0.5/fs
1/fs
2/fs
4/fs
Table 35. ALC1 Limiter Operation Period at zero crossing disable (ZELM bit=
“
1
”
)
WTM1-0: ALC1 Recovery Waiting Period (See Table 36)
A period of recovery operation when any limiter operation does not occur during the ALC1 operation.
Default is
“
00
”
(128/fs).
ALC1 Recovery Operation Waiting Period
8kHz
128/fs
16ms
256/fs
32ms
512/fs
64ms
1024/fs
128ms
Table 36. ALC1 Recovery Operation Waiting Period
Default
WTM1 bit
WTM0 bit
16kHz
8ms
16ms
32ms
64ms
0
0
1
1
0
1
0
1
ZTM1-0: ALC1 Zero crossing timeout Period (See Table 37)
When the IPGA perform zero crossing or timeout, the IPGA value is changed by the
μ
P WRITE operation,
ALC1 recovery operation or ALC1 limiter operation (ZELM bit =
“
0
”
). Default is
“
00
”
(128/fs).
Zero Crossing Timeout Period
8kHz
16ms
32ms
64ms
128ms
Default
ZTM1 bit ZTM0 bit
16kHz
8ms
16ms
32ms
64ms
0
0
1
1
0
1
0
1
Table 37. Zero Crossing Timeout Period
128/fs
256/fs
512/fs
1024/fs
ROTM: Period time for ALC2 Recovery operation, ALC2 Zero Crossing Timeout and ALC2 initializing cycle.
0: 512/fs (Default)
1: 1024/fs
The ROTM bit is set during the PMSPK bit =
“
0
”
.
DVTM : Digital Volume Soft Transition Time Control
0: 1061/fs (Default)
1: 256/fs
This is the time to FFH from 00H of DVOL7-0 bits.
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
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