參數(shù)資料
型號(hào)： AK4564VQ
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
中文描述： 16位編解碼器，配有ALC和麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁(yè)數(shù)： 39/48頁(yè)
文件大?。?/td> 382K
代理商： AK4564VQ
ASAHI KASEI
[AK4564]
MS0140-E-01
2002/07
- 39 -
Timer Select
Addr
06H
Register Name
Timer Select
Default
D7
TM1
0
D6
TM0
1
D5
D4
D3
ZTM1
1
D2
ZTM0
0
D1
D0
FDTM1 FDTM0
0
WTM1
1
WTM0
0
1
WTM1-0: ALC1 Recovery Waiting Period
A period of recovery operation when any limiter operation does not occur during ALC1 operation.
WTM1
WTM0
0
0
0
1
1
0
1
1
Table 14. ALC1 Recovery Operation Waiting Period
ALC1 Recovery Period
6ms
24ms
48ms
96ms
Default
ZTM1-0: IVOL Zero crossing Timeout Period
When IVOL of each L/R channels do zero crossing or timeout independently, the IVOL value is changed
by
μ
P WRITE operation or ALC1 recovery operation.
ZTM1
ZTM0
0
0
0
1
1
0
1
1
Table 15. Zero Crossing Timeout Period
Zero Crossing Timeout Period
6ms
24ms
48ms
96ms
Default
FDTM1-0: FADEIN/OUT Cycle Setting
The FADEIN/OUT operation is done by a period set by FDTM1-0 bits when FDIN or FDOUT bits are set
to “1”. When IVOL of each L/R channel do zero crossing or timeout independently, the IVOL value is
changed.
FDTM1
FDTM0
0
0
0
1
1
0
1
1
Table 16. FADEIN/OUT Period
TM1-0: Select zero crossing timeout period of OATT
These bits are enabled at ZCE = “1”.
TM1
TM0
Zero Crossing Timeout Period
0
0
0
1
1
0
1
1
Table 17. Select zero crossing timeout of OATT
FADEIN/OUT Period
20ms
40ms
48ms
56ms
Default
8ms
16ms
32ms
64ms
Default
* WTM1-0, ZTM1-0, FDTM1-0 and TM1-0 have the same time between fs=32kHz (FSTM bit = “1”)
and fs=48kHz (FSTM bit = “0”).
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PDF描述
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