(页数:21字数:6971)摘要： 主要介绍关于ADF4360-0的特性：ADF4360-0是一种完全综合的整数N合成器和压控振荡器。它被要求中心频率是2600MHZ，输出频率范围：2400MHZ-2725MHZ。同时具有双分离输出、3.0 V -3.6 V功率补给、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,一分为2的选项是可以利用的, 使用者在给予一个射频输出在 1200 百万赫兹和 1360 百万赫兹之间。
所有的在芯片寄存器之上的控制是经过一个简单的 3 线的接口。这种装置操作提供的功率范围从 3.0 V 到 3.6 V 在不使用时能够被拉低。ADF4360-0主要应用于无线手持设备、测试装备、无线局域网、有线电视设备。
关键词：压控振荡器、数字锁存、低功耗、3线接口
Abstract
The ADF4360-0 is a fully integrated integer-N synthesizer and voltage-controlled oscillator (VCO). It is designed for a center frequency of 2600 MHz. Output frequency range: 2400 MHz to 2725 MHz. 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 1200 MHz and 1360 MHz.
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．ADF4360-0芯片简介-------------------------------------------------------------------------------------3
2．ADF4360-0芯片电气性质----------------------------------------------------------------------------4
3. ADF4360-0芯片引脚功能-----------------------------------------------------------------------------5
4. ADF4360-0内部结构与工作原理---------------------------------------------------------------6
4.1.典型性能特征---------------------------------------------------------------------------------------------6
4.2.ADF4360-0芯片内部结构与工作原理------------------------------------------------------9
4.2.1基准输入部分---------------------------------------------------------------------------------------9
4.2.2 前置分频器-----------------------------------------------------------------------------------------10
4.2.3 A和B计数器-----------------------------------------------------------------------------------------10
4.2.4 R计数器----------------------------------------------------------------------------------------------11
4.2.5相位频率检波器和充电泵----------------------------------------------------------------------11
4.2.6多路复用器输出和锁定检测-------------------------------------------------------------------12
4.2.7锁相检波-----------------------------------------------------------------------------------------------12
4.2.8 输入移位寄存器------------------------------------------------------------------------------------12
4.2.9压控振荡器--------------------------------------------------------------------------------------------13
4.2.10输出部分----------------------------------------------------------------------------------------------13
5． ADF4360-0应用电路设计——固定频率发生器------------------------------------14
5.1总体描述---------------------------------------------------------------------------------------------------------14
5.2ADuC812 的连接---------------------------------------------------------------------------------------------15
5.3ADSP-21xx接口-----------------------------------------------------------------------------------------------16
5.4芯片的PCB封装的设计指导方针 -------------------------------------------------------------16
5.5.输出匹配--------------------------------------------------------------------------------------------------------16
5.6.尺寸轮廓 -----------------------------------------------------------------------------------------------------18
5.7.分类指南-------------------------------------------------------------------------------------------------------19
6. 总结-------------------------------------------------------------------------------------------------------------------------19
参考文献-------------------------------------------------------------------------------------------------------------------------19
| 