(页数: 23 字数:7661)摘要 :主要介绍关于ADF4360-6的特性：ADF4360-6是一个完整的整数-N合成器和电压控制振荡器。ADF4360-6的设计是为了匹配1150MHz的中心频率。输出频率范围：1050MHz到1250MHz。另外，由于有二分选择，用户接受到的525MHz到625MHz的RF输出信号。同时具有双分离输出、3.0到3.6伏电压支持、1.8 V逻辑兼容性、可编程的双重调节模块、3线连续界面的模拟和数字锁存、以及硬件和软件的低功耗模式。除此之外,二分选项是可以利用的, 使用者在给予一个射频输出在525MHz到625MHz。芯片注册管理是通过一个单一的三线接口完成，设备在3.0到3.6伏电压的支持下运行，并且在不用时可以被关闭。ADF3360-6主要用于无线设备（DECT,GSM,PCS,DCS,WCDMA）,检测装置,无线 LANs，CATV装置
关键词：压控振荡器、数字锁存、低功耗、三线接口
Abstract
The ADF4360-6 is a fully integrated integer-N synthesizer and voltage-controlled oscillator (VCO). It is designed for a center frequency of 1150 MHz. Output frequency range: 1050MHz到1250MHz. Divide-by-2 output、3.0 V to 3.6 V power supply、1.8 V logic compatibility、programmable dual-modulus、3-wire serial interface、analog and digital lock detect、hardware and software power-down mode。In addition, a divide-by-2 option is available, whereby the user gets an RF out-put of between 525MHz到625MHz.
Control of all the on-chip registers is through a simple 3-wire interface. The device operates with a power supply ranging from 3.0 V to 3.6 V and can be powered down when not in use. It is used wireless handsets、test equipment、wireless LANs、CATV equipment.
Key words: voltage-controlled oscillator、digital lock、power-down、3-wire interface。
1．ADF4360-6芯片简介-------------------------------------------------------------------------------------4
2．ADF4360-6芯片电气性质----------------------------------------------------------------------------5
3. ADF4360-6芯片引脚功能-----------------------------------------------------------------------------6
4. ADF4360-6内部结构与工作原理---------------------------------------------------------------7
4.1.典型性能特征---------------------------------------------------------------------------------------------7
4.2.ADF4360-6芯片内部结构与工作原理------------------------------------------------------10
4.2.1基准输入部分---------------------------------------------------------------------------------------10
4.2.2 前置分频器-----------------------------------------------------------------------------------------11
4.2.3 A和B计数器-----------------------------------------------------------------------------------------11
4.2.4 R，N锁存计数器----------------------------------------------------------------------------------12
4.2.5相位频率检波器和充电泵---------------------------------------------------------------------13
4.2.6多路复用器输出和锁定检测------------------------------------------------------------------13
4.2.7锁相检波----------------------------------------------------------------------------------------------14
4.2.8 输入移位寄存器-----------------------------------------------------------------------------------14
4.2.9压控振荡器--------------------------------------------------------------------------------------------14
4.2.10输出部分----------------------------------------------------------------------------------------------15
5． ADF4360-6应用电路设计——直接转换系统-------------------------------------------16
5.1 直接转换系统综述-----------------------------------------------------------------------------------------16
5.2 ADuC812 的连接---------------------------------------------------------------------------------------------18
5.3 ADSP-2181接口-----------------------------------------------------------------------------------------------19
5.4 芯片的PCB封装的设计指南--------------------------------------------------19
5.5 输出匹配--------------------------------------------------------------------------------------------------------20
5.6 尺寸轮廓 -----------------------------------------------------------------------------------------------------21
5.7 分类指南-------------------------------------------------------------------------------------------------------22
6. 总结-------------------------------------------------------------------------------------------------------------------------23
参考文献-------------------------------------------------------------------------------------------------------------------------23 |
