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AD9834

Low Power, 2.3 V to 5.5 V, 50 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834

20 mW功耗、2.3 V至5.5 V、75 MHz完整DDS; ? 窄帶SFDR > 72 dB \n\n? 電源電壓范圍：2.3 V至5.5 V 電源供電\n\n? 輸出頻率最高達(dá)37.5 MHz\n\n? 正弦波輸出/三角波輸出\n\n? 片上集成比較器 \n\n? 式SPI接口\n\n? 擴(kuò)展溫度范圍：?40°C至+105°C\n\n? 掉電選項(xiàng) \n\n? 功耗：20 mW（3 V時(shí)） \n\n? 20引腳TSSOP;

AD9834是一款75 MHz、低功耗DDS器件，能夠產(chǎn)生高性能正弦波和三角波輸出。其片內(nèi)還集成一個(gè)比較器，支持產(chǎn)生方波以用于時(shí)鐘發(fā)生。當(dāng)供電電壓為3 V時(shí)，其功耗僅為20 mW，非常適合對功耗敏感的應(yīng)用。 AD9834提供相位調(diào)制和頻率調(diào)制功能。頻率寄存器為28位；時(shí)鐘速率為75 MHz，可以實(shí)現(xiàn)0.28 Hz的分辨率。同樣，時(shí)鐘速率為1 MHz時(shí)，AD9834可以實(shí)現(xiàn)0.004 Hz的分辨率。影響頻率和相位調(diào)制的方法是通過串行接口加載寄存器，然后通過軟件或FSELECT/PSELECT引腳切換寄存器。\n\n AD9834通過一個(gè)三線式串行接口寫入數(shù)據(jù)。該串行接口能夠以最高40 MHz的時(shí)鐘速率工作，并且與DSP和微控制器標(biāo)準(zhǔn)兼容。\n\n 該器件采用2.3 V至5.5 V電源供電。模擬和數(shù)字部分彼此獨(dú)立，可以采用不同的電源供電；例如，AVDD可以是5 V，而DVDD可以是3 V。\n\n AD9834具有掉電引腳(SLEEP)，支持從外部控制掉電模式。器件中不用的部分可以掉電，以將功耗降至低點(diǎn)。例如，在產(chǎn)生時(shí)鐘輸出時(shí)，可以關(guān)斷DAC。\n\n 該器件采用20引腳TSSOP封裝。\n\n

AD9834

20 mW Power, 2.3 V to 5.5 V

AD9834BRU

Low Power, 2.3 V to 5.5 V, 50 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834BRU

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834BRU-REEL

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834BRU-REEL7

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834BRUZ

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi

AD9834BRUZ

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

GENERALDESCRIPTION TheAD9834isa75MHzlowpowerDDSdevicecapableofproducinghighperformancesineandtriangularoutputs.Italsohasanon-boardcomparatorthatallowsasquarewavetobeproducedforclockgeneration.Consumingonly20mWofpowerat3VmakestheAD9834anidealcandi