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參數(shù)資料
| 型號： | AK4341ET |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 192kHz 24-Bit Stereo ツヒ DAC with 2Vrms Output |
| 中文描述： | 192kHz的24位立體聲ツヒDAC，具有2Vrms的輸出 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大小： | 274K |
| 代理商： | AK4341ET |
ASAHI KASEI
[AK4341]
1. Grounding and Power Supply Decoupling
VDD, HVDD and VSS are supplied from analog supply and should be separated from system digital supply. Decoupling
capacitor, especially 0.1
μ
F ceramic capacitor for high frequency should be placed as near to VDD and HVDD as possible.
The differential voltage between VDD and VSS pins set the analog output range.
The power-up sequence between
VDD and HVDD is not critical.
2. Analog Outputs
The analog outputs are single-ended and centered around the VDD voltage. The output signal range is typically 2Vrms
(typ @VDD=3.3V). The internal switched-capacitor filter and continuous-time filter attenuate the noise generated by the
delta-sigma modulator beyond the audio passband. The output voltage is a positive full scale for 7FFFFFH (@24bit) and
a negative full scale for 800000H (@24bit). The ideal output is VDD voltage for 000000H (@24bit).
DC offsets on analog outputs are eliminated by AC coupling since analog outputs have DC offsets of VDD + a few mV.
Figure 7 shows an example of the external LPF with 2Vrms (typ) output.
10u
470
AOUT
2.2nF
AK4341
22k
2Vrms (typ)
Analog
Out
(fc = 154kHz, gain = -0.28dB @ 40kHz, gain = -1.04dB @ 80kHz)
Figure 7. External 1
st
order LPF Circuit Example
MS0558-E-01
2007/03
- 15 -
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| AK4343EN | Stereo DAC with HP/RCV/SPK-AMP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4342 | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit Stereo DAC with HP-AMP & 2V Line-Out |
| AK4342EN | 制造商:AKM 制造商全稱:AKM 功能描述:24-Bit Stereo DAC with HP-AMP & 2V Line-Out |
| AK4342EN-L | 制造商:ASAHI 功能描述: |
| AK4342ENP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4343 | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo DAC with built-in HP/RCV/SPK amplifier |
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