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參數(shù)資料
| 型號(hào)： | AK4550 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | LOW POWER & SMALL PACKAGE 16BIT CODEC |
| 中文描述： | 低功耗 |
| 文件頁(yè)數(shù)： | 9/15頁(yè) |
| 文件大?。?/td> | 102K |
| 代理商： | AK4550 |
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ASAHI KASEI
[AK4550]
M0068-E-01
2000/4
- 9 -
n
De-emphasis filter
The DAC of AK4550 includes the digital de-emphasis filter (tc=50/15us) by IIR filter. This filter corresponds to three
frequencies (32kHz, 44.1kHz, 48kHz). The de-emphasis filter selected by DEM0 and DEM1 is enabled for input audio
data. The de-emphasis is also disabled at DEM0=”1” and DEM1=”0”.
DEM1
0
0
1
1
Table 2. De-emphasis filter control
DEM0
0
1
0
1
Mode
44.1kHz
OFF
48kHz
32kHz
n
Digital High Pass Filter
The AK4550 has a Digital High Pass Filter (HPF) for DC-offset cancel. The cut-off frequency of the HPF is 3.4Hz at
fs=44.1kHz and the frequency response at 20Hz is –0.12dB. It also scales with the sampling frequency (fs).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4550VT | LOW POWER & SMALL PACKAGE 16BIT CODEC |
| ALN2400 | Low Noise Amplifier |
| AM79212 | Advanced Subscriber Line Interface Circuit |
| AM79212JC | Advanced Subscriber Line Interface Circuit |
| AM79213 | Advanced Subscriber Line Interface Circuit (ASLIC) Device |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4550VT | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER & SMALL PACKAGE 16BIT CODEC |
| AK4550VT-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4550VTP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:16BIT 3V |
| AK4551 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.C FOR AK4551 |
| AK4551VT | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER & SMALL PACKAGE 20BIT CODEC |
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