低噪声频率合成器及其应用  

Low Noise Frequency Synthesizer and Its Application

作　　者：武婷[1] 张传生[1] 丁琦[1] 

机构地区：[1]西安交通大学,陕西西安710049

出　　处：《电子元器件应用》2004年第2期34-37,共4页Electronic Component & Device Applications

摘　　要：SP5730是支持快速I2C总线协议的低噪声PLL频率合成器。其合成频率高达1.3GHz,参考时钟如采用4MHz晶振,最小步长可达8.9kHz。主要应用于数字电视的电缆和地面接收系统。介绍该电路的工作原理及使用方法,并给出它的典型应用。SP5730 is a single-chip I2C bus low noise frequency synthesizer for tuning system up to 1.3 GHz. The minimum stepsize is 8. 9 kHz based on 4 MHz crystal oscillator. It is optimized for cable of digital TV, terrestrial receiving system. Its operating principle and application method are introduced. The typical application is also given.

关 键 词：频率合成器 锁相环 数字电视 应用 

分 类 号：TN409[电子电信—微电子学与固体电子学]