Analog Devices Inc. ADF4371/ADF4372微波寬頻合成器

搭配外部環路濾波器與外部參考頻率使用時,Analog Devices ADF4371/ADF4372微波寬頻合成器可實作分數-N型或整數-N型鎖相迴路 (PLL) 頻率合成器。寬頻微波電壓控制振盪器 (VCO) 的設計可產生62.5 MHz至32 GHz (ADF4371) 或62.5 MHz至16 GHz (ADF4372) 的頻率。  

ADF4371/ADF4372包含整合式VCO,其基本輸出頻率為4000 MHz至8000 MHz。此外,VCO頻率可連接劃分為1、2、4、8、16、32或64個電路,可讓使用者在RF8x下產生最低至62.5 MHz的射頻 (RF) 輸出頻率。RF16x下的頻率乘法器可產生8 GHz至16 GHz。頻率四倍頻器可在RF32x下讓ADF4371產生16 GHz至32 GHz的頻率。RFAUX8x可複製RF8x的頻率範圍,或允許直接存取VCO輸出。為抑制頻率乘積出現的非必要結果,乘法器與RF16x和RF32x(僅限ADF4371)的輸出級之間還有諧波濾波器。

 

所有的晶片內建暫存器皆透過3線介面控制。ADF4371/ADF4372可在類比和數位電源供應器的3.15V至3.45V範圍,以及VCO電源供應的5V下作業。ADF4371/ADF4372亦包含硬體和軟體關機模式。

 

特點

  • RF輸出頻率範圍 
    • ADF4371 - 62.5MHz至32,000MHz
    • ADF4372 - 62.5MHz至16,000MHz
  • 分數-N型合成器與整數-N型合成器
  • 高解析度39位元分數模組
  • 典型的雜訊PFD:−90dBc
  • 整合式RMS抖動:38 fs(1 kHz至100 MHz)
  • 正規化相位雜訊基準:−234dBc/Hz
  • PFD作業至250MHz
  • 參考頻率作業至600MHz
  • 可編程劃分為1、2、4、8、16、32或64個輸出
  • RF8x和RFAUX8x下的輸出範圍為62.5 MHz至8,000 MHz
  • RF16x下的輸出範圍為8,000 MHz至16,000 MHz
  • RF32x(僅限ADF4371)下的輸出範圍為16,000 MHz至32,000 MHz
  • 含自動校正的鎖定時間約3 ms
  • 含自動校正旁通的鎖定時間小於30 μs
  • 類比與數位電源供應器:3.3V
  • VCO電源供應:3.3V與5V
  • RF輸出靜音功能
  • 7mm×7mm,48端子LGA封裝

應用

  • 無線基礎架構(行動通訊的多載波全球系統 (MC-GSM)、5G)
  • 測試設備和儀器
  • 時脈產生
  • 航太與國防

影片

Additional Resources

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方塊圖

結構圖 - Analog Devices Inc. ADF4371/ADF4372微波寬頻合成器
發佈日期: 2019-03-05 | 更新日期: 2025-03-04