參數(shù)資料
型號: AK5366VR
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 24-Bit 48kHz ツヒ ADC with Selector/PGA/ALC
中文描述: 24位48kHz的ツヒADC,具有選擇/美國PGA / ALC的
文件頁數(shù): 35/42頁
文件大小: 325K
代理商: AK5366VR
ASAHI KASEI
[AK5366VR
]
MS0526-E-00
2006/07
- 35 -
Addr
03H
Register Name
Timer Select
R/W
Default
D7
0
RD
0
D6
0
RD
0
D5
LTM1
R/W
1
D4
LTM0
R/W
0
D3
ZTM1
R/W
1
D2
ZTM0
R/W
0
D1
D0
WTM1
R/W
1
WTM0
R/W
1
WTM1-0: ALC Recovery waiting time (see Table 14)
A period of recovery operation when any limiter operation does not occur during the ALC operation.
WTM1
WTM0
ALC recovery operation waiting period
0
0
0
1
1
0
1
1
Table 14. ALC recovery waiting time
ZTM1-0: Zero crossing timeout (see Table 15)
When the IPGA of each L/R channels perform zero crossing or timeout independently, the IPGA value is
changed by the
μ
P WRITE operation, ALC recovery operation or ALC limiter operation (ZELMN bit = “0”).
ZTM1
ZTM0
Zero crossing timeout period
0
0
288/fs
0
1
1152/fs
1
0
2304/fs
1
1
4608/fs
Table 15. Zero crossing timeout
LTM1-0: ALC Limiter period (see Table 16)
When ZELMN bit = “1”, the IPGA value is changed immediately. When the IPGA value is changed
continuously, the change is done by the period set by the LTM1-0 bits.
LTM1
LTM0
ALC limiter operation period
0
0
3/fs
0
1
6/fs
1
0
12/fs
1
1
24/fs
Table 16. ALC limiter period
@fs=48kHz
6ms
24ms
48ms
96ms
288/fs
1152/fs
2304/fs
4608/fs
Default
@fs=48kHz
6ms
24ms
48ms
96ms
Default
@fs=48kHz
63
μ
s
125
μ
s
250
μ
s
500
μ
s
Default
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