參數(shù)資料
型號(hào)： AKD4384
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:3; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:12-3 RoHS Compliant: No
中文描述： 一零六分貝192kHz的24位2通道數(shù)模轉(zhuǎn)換器
文件頁(yè)數(shù)： 20/22頁(yè)
文件大?。?/td> 241K
代理商： AKD4384
ASAHI KASEI
[AK4384]
MS0176-E-00
2002/09
- 20 -
1. Grounding and Power Supply Decoupling
VDD 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 as possible. The differential
Voltage between VDD and VSS pins set the analog output range.
2. Analog Outputs
The analog outputs are single-ended and centered around the VCOM voltage. The output signal range is typically 3.40Vpp
(typ@VDD=5V). The phase of the analog outputs can be inverted channel independently by INVL/INVR bits. 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 VCOM voltage for 000000H (@24bit).
DC offsets on analog outputs are eliminated by AC coupling since analog outputs have DC offsets of VCOM + a few mV.
Figure 11 shows an example of the external LPF with 2Vrms output.
820p
3.3k
1.5k
1.8k
820p
+Vop
2.2k
-Vop
AOUT
22u
fc=111.8kHz, Q=0.714, g=-0.04dB at 40kHz
Analog
Out
10k
Figure 11. External 2
nd
order LPF Circuit Example (using op-amp with dual power supplies)
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AKD4384-SC 制造商:AKM 制造商全稱:AKM 功能描述:192kHz sampling 24Bit ツヒ DAC
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AKD4385-SC 制造商:AKM 制造商全稱:AKM 功能描述:192kHz sampling 24Bit ツヒ DAC
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