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參數(shù)資料
| 型號： | AK4366 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Low Power 24-Bit 2ch DAC with HP-AMP |
| 中文描述： | 低功耗24位2通道DAC，具有惠普腺苷 |
| 文件頁數(shù)： | 17/31頁 |
| 文件大?。?/td> | 266K |
| 代理商： | AK4366 |
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ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 17 -
n
Soft Mute
Soft mute operation is performed at digital domain. In serial mode (P/S= “L”), when the SMUTE bit goes to “1”, the output
signal is attenuated by -
∞
during ATT_DATA
×
SMUTE bit is returned to “0”, the mute is cancelled and the output attenuation gradually changes to the ATT level during
ATT_DATA
×
ATT transition time. If the soft mute is cancelled before attenuating to -
∞
after starting the operation, the
attenuation is discontinued and returned to ATT level by the same cycle. The soft mute is effective for changing the signal
source without stopping the signal transmission. In parallel mode (P/S= “H”), soft mute is not available.
SMUTE bit
Attenuation
ATS bit
(1)
0dB
-
∞
Analog Output
GD
(2)
GD
(3)
ATS bit
(1)
Figure 13. Soft Mute Function
Notes:
(1) ATT_DATA
×
ATT transition time (Table 6). For example, this time is 3712LRCK cycles (3712/fs) at ATS=1 and
ATT_DATA=128.
(2) The analog output corresponding to the digital input has a group delay, GD.
(3) If the soft mute is cancelled before attenuating to -
∞
after starting the operation, the attenuation is discontinued and
returned to ATT level by the same cycle.
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