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參數(shù)資料
| 型號： | AK4520A-VF |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 100dB 20Bit Stereo ADC & DAC |
| 中文描述： | 100dB的20位立體聲ADC |
| 文件頁數(shù)： | 11/19頁 |
| 文件大?。?/td> | 198K |
| 代理商： | AK4520A-VF |
ASAHI KASEI
[AK4520A]
0163-E-00
1997/3
- 11 -
Digital High Pass Filter
The ADC of AK4520A has a digital high pass filter for DC offset cancel. The cut-off frequency of the HPF is
0.9Hz at fs=44.1kHz and also scales with sampling rate(fs).
De-emphasis filter
The DAC of AK4520A 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".
DEM 1
0
0
1
1
Table 3 . De-emphasis filter control
DEM0
0
1
0
1
Mode
44.1kHz
OFF
48kHz
32kHz
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PDF描述 |
|---|---|
| AK4520 | 100dB 20Bit Stereo ADC & DAC |
| AK4520A | 100dB 20Bit Stereo ADC & DAC |
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| AK4522 | 制造商:AKM 制造商全稱:AKM 功能描述:20Bit Stereo ΔΣ ADC & DAC |
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| AK4522VF | 制造商:AKM 制造商全稱:AKM 功能描述:20BIT STEREO ADC & DAC |
| AK4522VM | 制造商:AKM 制造商全稱:AKM 功能描述:20Bit Stereo ΔΣ ADC & DAC |
| AK4523 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.A FOR AK4523 |
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