基于CX3627ERDE的芯片简介及应用电路设计

摘要
概述
CXA3627ER 是的一整体电视调频器IC集成本振和VHF带混频器电路, 本振和VHF带混频器电路为超高频带, 如果放大器和定调的PLL 唯一芯片, 采取一个小封装使能调频器的进一步小型化。
关键字：CXA3627ER       PLL          调频器
                          

Abstract
The CXA3627ER is a monolithic TV tuner IC which integrates local oscillator and mixer circuits for VHF band, local oscillator and mixer circuits for UHF band, an IF amplifier and a tuning PLL onto a single chip, enabling further miniaturization of the tuner by adopting a small package.
Key word: CXA3627ER    PLL            调频器

目 录

1. CXA3627ER芯片简介...................................................................4
2. CXA3627ER芯片封装与引脚功能.........................................................5
3. CXA3627ER内部结构与工作原理  ......................................................14
3．  1混频电路........................................................................14

3．2本振电路..........................................................................15

3．3中频放大器........................................................................15

3．4锁相环电路........................................................................15

3．5带开关电路........................................................................15

4. CXA3627ER应用电路设计..............................................................10
5. 总结...............................................................................27
参考文献..............................................................................28

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