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參數(shù)資料
| 型號(hào)： | AK4702EQ |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 2ch DAC with AV SCART switch |
| 中文描述： | 2聲道DAC，具有影音SCART開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 34/39頁(yè) |
| 文件大小： | 481K |
| 代理商： | AK4702EQ |
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ASAHI KASEI
[AK4702EQ]
MS0424-E-00
2005/09
- 34 -
1. Grounding and Power Supply Decoupling
VD, VP, VVD1, VVD2, VSS and VVSS should be supplied from analog supply unit and be separated from system digital
supply. Decoupling capacitor, especially the 0.1
μ
F ceramic capacitor for high frequency noise should be placed as near to
VD (VP, VVD1, VVD2) as possible.
2. Voltage Reference
Each VCOM is a signal ground of this chip. An electrolytic capacitor 10
μ
F parallel with a 0.1
μ
F ceramic capacitor
attached to VCOM pin eliminates the effects of high frequency noise. No load current may be drawn from VCOM pin. All
signals, especially clocks, should be kept away from VCOM pins in order to avoid unwanted coupling into the AK4702.
3. Analog Audio Outputs
The analog outputs are also single-ended and centered on 5.6V(Typ.). The output signal range is typically 2Vrms
(typ@VD=5V). The internal switched-capacitor filter and continuous-time filter attenuate the noise generated by the
delta-sigma modulator beyond the audio pass band. Therefore, any external filters are not required for typical application.
The output voltage is a positive full scale for 7FFFFFH (@18bit) and a negative full scale for 800000H (@18bit). The
ideal output is 5.6V(Typ.) for 000000H (@18bit). The DC voltage on analog outputs are eliminated by AC coupling.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4702 | 2CH DAC WITH AV SCART SWITCH |
| AK4703 | AV SCART switch |
| AK4703VQ | AV SCART switch |
| AK4704 | 2ch 24bit DAC with AV SCART switch |
| AK4705 | 2ch 24bit DAC with AV SCART Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4702VQ | 功能描述:IC AV SCART SWITCH 64LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
| AK4703 | 制造商:AKM 制造商全稱:AKM 功能描述:AV SCART switch |
| AK4703VQ | 制造商:AKM 制造商全稱:AKM 功能描述:AV SCART switch |
| AK4704 | 制造商:AKM 制造商全稱:AKM 功能描述:2ch 24bit DAC with AV SCART switch |
| AK4705 | 制造商:AKM 制造商全稱:AKM 功能描述:2ch 24bit DAC with AV SCART Switch |
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