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AD9776A

Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters

GENERALDESCRIPTION TheAD9776A/AD9778A/AD9779Aaredual,12-/14-/16-bit,highdynamicrangedigital-to-analogconverters(DACs)thatprovideasamplerateof1GSPS,permittingamulticarriergenerationuptotheNyquistfrequency.Theyincludefeaturesoptimizedfordirectconversiontransmissi

AD9776A

雙通道、12位、1 GSPS數(shù)模轉(zhuǎn)換器; ? 低功耗（全部工作條件下）：1.0 W (1 GSPS)，600 mW (500 MSPS)\n\n? 單載波WCDMA ACLR = 80 dBc (80 MHz 中頻)\n\n? 可調(diào)模擬輸出：8.7 mA至31.7 mA（RL = 25 Ω至50 Ω）\n\n? 新穎的2×、4×、8×插值器/粗調(diào)復(fù)合調(diào)制器可以將載波放在DAC帶寬中的任何位置\n\n\n\n? 輔助DAC可以控制外部VGA及失調(diào)\n\n? 多芯片同步接口\n\n? 高性能、低噪聲鎖相環(huán)(PLL)時(shí)鐘乘法器\n\n? 數(shù)字反向sinc濾波器\n\n? 100引腳、裸露焊盤TQFP封裝;

AD9776A/AD9778A/AD9779A分別是雙通道、12/14/16位、高動(dòng)態(tài)范圍數(shù)模轉(zhuǎn)換器(DAC)，提供1 GSPS采樣速率，可以產(chǎn)生最高達(dá)奈奎斯特頻率的多載波。這些器件具有針對(duì)直接變頻傳輸應(yīng)用進(jìn)行優(yōu)化的特性，包括復(fù)數(shù)數(shù)字調(diào)制以及增益與失調(diào)補(bǔ)償。DAC輸出經(jīng)過(guò)優(yōu)化，可以與模擬正交調(diào)制器無(wú)縫接口，例如ADI公司的ADL537x FMOD系列調(diào)制器。三線式接口允許對(duì)許多內(nèi)部參數(shù)進(jìn)行編程和回讀。滿量程輸出電流可以在10 mA至30 mA范圍內(nèi)進(jìn)行編程。這些器件采用先進(jìn)的0.18 μm CMOS工藝制造，采用1.8 V和3.3 V電源供電，總功耗為1.0 W，并采用100引腳超薄四方扁平封裝(TQFP)。\n\n 產(chǎn)品特色\n\n- 利用超低噪聲與交調(diào)失真(IMD)特性，從基帶到高中頻的寬帶信號(hào)可以實(shí)現(xiàn)高質(zhì)量合成。- 專有DAC輸出開(kāi)關(guān)技術(shù)可增強(qiáng)動(dòng)態(tài)性能。- 電流輸出配置簡(jiǎn)便，可以用于各種單端或差分電路拓?fù)浣Y(jié)構(gòu)。- CMOS數(shù)據(jù)輸入接口，具有可調(diào)的建立與保持功能。- 新穎的2×、4×、8×插值器/粗調(diào)復(fù)數(shù)調(diào)制器可以將載波放在DAC帶寬中的任何位置。

AD9776A

Digital-to-Analog Converters

AD9776ABSVZ

Dual, 12-/14-/16-Bit,1 GSPS

GENERALDESCRIPTION TheAD9776A/AD9778A/AD9779Aaredual,12-/14-/16-bit,highdynamicrangedigital-to-analogconverters(DACs)thatprovideasamplerateof1GSPS,permittingamulticarriergenerationuptotheNyquistfrequency.Theyincludefeaturesoptimizedfordirectconversiontransmissi

AD9776ABSVZRL

Dual, 12-/14-/16-Bit,1 GSPS

GENERALDESCRIPTION TheAD9776A/AD9778A/AD9779Aaredual,12-/14-/16-bit,highdynamicrangedigital-to-analogconverters(DACs)thatprovideasamplerateof1GSPS,permittingamulticarriergenerationuptotheNyquistfrequency.Theyincludefeaturesoptimizedfordirectconversiontransmissi

AD9776A-EBZ

Dual, 12-/14-/16-Bit,1 GSPS

GENERALDESCRIPTION TheAD9776A/AD9778A/AD9779Aaredual,12-/14-/16-bit,highdynamicrangedigital-to-analogconverters(DACs)thatprovideasamplerateof1GSPS,permittingamulticarriergenerationuptotheNyquistfrequency.Theyincludefeaturesoptimizedfordirectconversiontransmissi

AD9776A_15

Dual, 12-/14-/16-Bit,1 GSPS

AD9776A_17

Digital-to-Analog Converters

AD9776ABSVZ

Digital-to-Analog Converters

AD9776ABSVZRL

Digital-to-Analog Converters