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DS856–高速3GHz直接數字合成器
DS856–高速3GHz直接數字合成器

重要參數

DS856–高速3GHz直接數字合成器

時鐘頻率:3.0 GHz

頻率字位:32

可選擇RZ模式:?

品牌:EUVIS

產品詳情介紹

DS856是一種高速直接數字合成器(DDS),頻率調諧分辨率為32位,ROM相位分辨率為13位,DAC振幅分辨率為11位。第一奈奎斯特波段的正弦波最高可產生1.6GHz(3.2GHz時鐘頻率)。初始相位可以重置為零度開始。該芯片有一對互補輸出端接50?。輸出波形的頻率可由32個頻率控制位Vi[0:31]控制。DS856可接受差分時鐘輸入或單端時鐘輸入,具有50Ω片上后端終端和用戶定義的閾值。頻率分辨率位接受LVTTL或CMOS輸入電平。只需要一個-5V電源。


主要特點

?32位頻率調諧字和13位相位分辨率

?具有11位分辨率的片上DAC

?時鐘頻率高達3.2 GHz

?產生高達1.6 GHz的正弦波

?帶50?背面終端的互補模擬波形輸出

?最差SFDR>50 dBc

?LVTTL/CMOS數字頻率字輸入

?重置引腳以啟動0相啟動狀態

?高速選通以更新頻率字和DAC輸出頻率

?高速選通輸入由微控制器或DSP芯片控制,用于實時啁啾

?頻率更新率高達8個時鐘周期

?單個-5.0V電源的功耗為3.3W


應用

?雷達設計和測試

?衛星通信

?VSAT

?電子戰

?無線基站

?射頻信號源生成

?儀器和半導體測試儀

?高級通信調制

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