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參數(shù)資料
| 型號： | AK4420 |
| 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)： | 16/19頁 |
| 文件大?。?/td> | 373K |
| 代理商： | AK4420 |
[AK4420]
1. Grounding and Power Supply Decoupling
VDD, CVDD and VSS are supplied from the analog supply and should be separated from the system digital supply.
Decoupling capacitors, especially 0.1
μ
F ceramic capacitors for high frequency bypass, should be placed as near to VDD
and CVDD as possible. The differential voltage between VDD and VSS pins set the analog output range.
The power-up
sequence between VDD and CVDD is not critical.
2. Analog Outputs
The analog outputs are single-ended and centered around the VSS (ground) voltage. The output signal range is typically
2.12Vrms (typ @VDD=5V). The internal switched-capacitor filter (SCF) and continuous-time filter (CTF) attenuate the
noise generated by the delta-sigma modulator beyond the audio passband. Using single a 1
st
-order LPF (
Figure 11
) can
reduce noise beyond the audio passband.
Figure 12
shows example in the case of 10k
, 100k
terminus.
The output voltage is a positive full scale for 7FFFFFH (@24bit data) and a negative full scale for 800000H (@24bit
data). The ideal output is 0V (VSS) voltage for 000000H (@24bit data). The DC offset is ±60mV or less.
470
AOUT
2.2nF
AK4420
2.12Vrms (typ)
Analog
Out
(fc = 154kHz, gain = -0.28dB @ 40kHz, gain = -1.04dB @ 80kHz)
Figure 11. External 1
st
order LPF Circuit Example1
AOUT
820
1000pF
AK4420
Analog
Out
220
10k
1.92Vrms (typ)
100k
2.1Vrms (typ)
47
μ
47k
Figure 12. External 1
st
order LPF Circuit Example2
MS0683-E-02
2007/12
- 16 -
相關PDF資料 |
PDF描述 |
|---|---|
| AK4420ET | 192kHz 24-Bit Stereo ツヒ DAC with 2Vrms Output |
| AK4516A | 3V 16bit ADC & DAC with built-in PGA(3V 16位帶內(nèi)置的模擬輸入可編程增益放大器的A/D轉(zhuǎn)換器和D/A轉(zhuǎn)換器) |
| AK4516AVF | 3V 16BIT ADC&DAC WITH BUILT-IN PGA |
| AK4522 | 20BIT STEREO ADC & DAC |
| AK4522VF | 20BIT STEREO ADC & DAC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4420_10 | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output |
| AK4420ET | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output |
| AK4420ETP-E2 | 功能描述:IC DAC 24BIT STEREO 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AK4420VT | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output |
| AK4421 | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output |
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