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參數(shù)資料
| 型號： | AK4121A |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Asynchronous Sample Rate Converter |
| 中文描述： | 異步采樣率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 11/19頁 |
| 文件大小： | 353K |
| 代理商： | AK4121A |
[AK4121A]
■
Soft Mute Operation
When the SMUTE pin changes to “H”, the output signal is attenuated from 0dB to
∞
dB during 1024 OLRCK cycles.
When the SMUTE pin returns to “L”, the attenuation is cancelled and the output signal gradually changes to 0dB during
1024 OLRCK cycles. If the soft mute is cancelled before attenuating to
∞
, the attenuation is discontinued and returns
to 0dB by the same cycles. The soft mute is effective for changing the signal source.
SMUTE
0dB
Attenuation Level
at SDTO
-
∞
dB
(1)
(2)
(1)
Notes:
(1)
Transition time. 1024 OLRCK cycles (1024/fso).
(2)
If the soft mute is cancelled before attenuating to
∞
after starting the operation, the attenuation is discontinued
and returned to 0dB by the same number of clock cycles.
Figure 8. Soft Mute
■
De-emphasis Filter
A digital de-emphasis filter is available for 32, 44.1 or 48kHz sampling rates (tc=50/15μs) and is enabled or disabled
with DEM0 and DEM1.
Mode
DEM1
DEM0
0
L
L
1
L
H
2
H
L
3
H
H
Table 4. De-emphasis Filter Control
De-emphasis filter
44.1kHz
OFF
48kHz
32kHz
MS0337-E-02
2007/07
- 11 -
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PDF描述 |
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| AK4121AVF | Asynchronous Sample Rate Converter |
| AK4121 | ASYNCHRONOUS SAMPLE RATE CONVERTER |
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| AK4126VQ | 6ch 192kHz / 24-Bit Asynchronous SRC |
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相關(guān)代理商/技術(shù)參數(shù) |
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| AK4121A_10 | 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Sample Rate Converter |
| AK4121AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Sample Rate Converter |
| AK4122 | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
| AK4122_1 | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
| AK4122A | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit 96kHz SRC with DIR |
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