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參數(shù)資料
| 型號： | AK4125VF |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 192kHz / 24Bit High Performance Asynchronous SRC |
| 中文描述： | 192kHz的/ 24位高性能異步鋼骨混凝土 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大?。?/td> | 393K |
| 代理商： | AK4125VF |
[AK4125]
■
Soft Mute Operation
1. Manual mode
Soft mute operation is performed in the digital domain of the SRC output. Soft mute can be controlled by the SMUTE pin.
When the SMUTE pin changes to “H”, the SRC output data is attenuated by
∞
within 1024 OLRCK cycles. When the
SMUTE pin changes to “L”, the mute is cancelled and the output attenuation gradually changes to 0dB during 1024
OLRCK cycles. If the soft mute is cancelled before mute state after starting the operation, the attenuation is discontinued
and returned to 0dB by the same cycles. The soft mute is effective for changing the signal source.
SMUTE
Attenuation
0dB
-
∞
(1)
(2)
SDTO
1024/fso
Figure 9. Soft Mute Function (Manual Mode)
(1)
The output data is attenuated by
∞
during 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.
2. Semi-Auto mode
The soft mute is cancelled automatically by the setting of PLL2-0 pins (Table 2), after the AK4125 detects the rising edge
(PDN pin = “L”
→
“H”) and the mute is continued during 4410/fso=100ms@fso=44.1kHz. After PDN pin = “L”
→
“H”
and when the SMUTE pin is “H”, the mute is not cancelled.
PDN pin
“L”
Attenuation
0dB
-
∞
SDTO
4410/fso
(1)
SMUTE pin
Don’t care
“L”
Figure 10. Soft Mute Function (Semi-Auto Mode)
(1)
The output data is returned to 0dB during 1024 OLRCK cycles (1024/fso).
MS0379-E-04
2007/07
- 16 -
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4125VFP | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4125VFP-E2 | 功能描述:IC SAMPLE RATE CONVERTER 30VSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| AK4125XF | 功能描述:IC ASYNCH SAMPLE RATE 30VSOP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時間 標準包裝:1,000 |
| AK4126 | 制造商:AKM 制造商全稱:AKM 功能描述:digital sample rate converter. |
| AK4126VQ | 制造商:AKM 制造商全稱:AKM 功能描述:6ch 192kHz / 24-Bit Asynchronous SRC |
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