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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)： | 13/19頁 |
| 文件大?。?/td> | 373K |
| 代理商： | AK4420 |
[AK4420]
■
System Reset
The AK4420 is in power down mode upon power-up. The MLCK should be input after the power supplies are ramped up.
The AK4420 is in power-down mode until LRCK are input.
D/A Out
(Analog)
MCLK
DZF
20 us
Low
Power Supply
(VDD, CVDD)
2, 3
LRCK
Digital
Circuit
Analog
Circuit
Charge Pump
Circuit
Charge Pump
Counter circuit
Time A
(1)
(2)
(3)
(5)
Power-up
Power-up
“0” data
D/A In
(Digital)
MUTE (D/A Out)
(4)
6)
Power down
Power down
Power-up
Power down
Notes:
(1) Approximately 20us after a MCLK input is detected, the internal analog circuit is powered-up.
(2) The digital circuit is powered-up after 2 or 3 LRCK cycles following the detection of MCLK.
(3) The charge pump counter starts after the charge pump circuit is powered-up. The DAC outputs a valid analog signal
after Time A.
Time A = 1024/ (fs x 16): Normal speed mode
Time A = 1024/ (fs x 8) : Double speed mode
Time A = 1024/ (fs x 4) : Quadruple speed mode
(4) No audible click noise occurs under normal conditions.
(5) The DZF pin is “L” in the power-down mode.
(6) The power supply must be powered-up when the MCLK pin is “L”. MCLK must be input after 20us when the power
supply voltage achieves 80% of VDD. If not, click noise may occur at a different time from this figure.
Figure 8. System reset diagram
MS0683-E-02
2007/12
- 13 -
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| 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設(shè)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(yīng)商設(shè)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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