參數(shù)資料
型號(hào)： AK4633VN
廠商： ASAHI KASEI POWER DEVICES CORP
元件分類(lèi)： 消費(fèi)家電
英文描述： 16bit mono CODEC with MIC/SPK amplifier.
中文描述： SPECIALTY CONSUMER CIRCUIT, PQCC24
封裝： 4 X 4 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, QFN-24
文件頁(yè)數(shù)： 23/38頁(yè)
文件大?。?/td> 913K
代理商： AK4633VN
ASAHI KASEI
[AKD4633-A]
<KM079406>
2007/04
- 23 -
8. [Filter Dialog]
It is possible to calculate the coefficients of HPF and EQ filters, write these coefficients to registers and confirm the
frequency response of these filters. Click [Filter] button, then the window as shown in
Figure 6
opens.
Figure 6. [Filter] Window
(1) Setup the Parameters
Set up the parameters of HPF and EQ filters.
Parameter
Sampling Rate
HPF Cut Off Frequency
EQ1 Center Frequency
EQ1 Band Width
EQ1 Gain
EQ2 Center Frequency
EQ2 Band Width
EQ2 Gain
Note 1.
Band width of 3dB gain difference from center frequency
Note 2.
This filter is notch filter when this gain is -1.
(2) Filter ON/OFF
Set up the ON or OFF of filters by the check button of "HPFAD", "HPF", "EQ1" and "EQ2". The filter is ON when the
button is checked.
Contents
Setup range
Sampling Frequency (fs)
High Pass Filter Cut Off Frequency
EQ1 Center Frequency
EQ1 Band Width (Note 1)
EQ1 Gain (Note 2)
EQ2 Center Frequency
EQ2 Band Width (Note 1)
EQ2 Gain (Note 2)
48000Hz
≥
fs
≥
7350Hz
(fs/2 – 1)
≥
fc > fs/10000
fs/2
≥
EQ1 > 0Hz
fs/2
≥
EQ1 >1Hz
3 > EQ1
≥
- 1
fs/2
≥
EQ2 > 0Hz
fs/2
≥
EQ2 >1Hz
3 > EQ2
≥
- 1
Figure 7. Filter ON/OFF check button
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4633VNP-L 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A
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AK4635ECB 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
AK4636 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
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