參數(shù)資料
型號(hào)： AK4342
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 24-Bit Stereo DAC with HP-AMP & 2V Line-Out
中文描述： 24位立體聲DAC惠普腺苷
文件頁數(shù)： 26/43頁
文件大?。?/td> 580K
代理商： AK4342
ASAHI KASEI
[AK4342]
MS0506-E-02
2006/07
- 26 -
Transition Time
Changing volume level, power-up/down and switching signal path don’t have any pop noise. The following registers
have a transition time shown in Table 13 and Table 15. It depends the sampling frequency (FS3-0 bits) and the setting of
PUT1-0 bits and PTS1-0 bits. It is necessary to take the interval time when the register is changed continually. The
interval time depends on the transition time. The setting of transition time should not be changed during transition.
Address
PUT1-0 bit
00H
Table 12. Registers with transition time (PUT1-0 bits)
PUT1 bit
PUT0 bit
Sampling Frequency (FS3-0 bits)
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
0
0
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
0
1
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
1
0
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
1
1
12k / 24k / 48k / 96kHz
Table 13. Transition Time (PUT1-0 bits)
Address
01H
04H
05H
06H
RINR, RINL, LINR, LINL, DACLR
07H
Table 14. Registers with transition time (PTS1-0 bits)
PTS1 bit
PTS0 bit
Sampling Frequency (FS3-0 bits)
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
0
0
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
0
1
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
1
0
12k / 24k / 48k / 96kHz
8k / 16k / 32k / 64kHz
11.025k / 22.05k / 44.1k/ 88.2kHz
1
1
12k / 24k / 48k / 96kHz
Table 15. Transition Time (PTS1-0 bits)
Register Name
PMHP, PMLO
Transition Time
32ms
34.8ms
32ms
64ms
69.7ms
64ms
128ms
139ms
128ms
256ms
278ms
256ms
Default
Register Name
AMUTE
HMUTEL, PGAL4-0
HMUTER, PGAR4-0
PTS1-0 bit
LMUTE, LPGA4-0
Transition Time
16ms
17.4ms
16ms
32ms
34.8ms
32ms
64ms
69.7ms
64ms
128ms
139ms
128ms
Default
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