FS7140中文资料I2C Programmable 1-PLL Clock数据手册ONSEMI规格书

描述 Description

The FS7140 or FS7145 is a monolithic CMOS clock generator/regenerator IC designed to minimize cost and component count in a variety of electronic systems. Via the I2C-bus interface, the FS7140/45 can be adapted to many clock generation requirements. The length of the reference and feedback dividers, their fine granularity and the flexibility of the post divider make the FS7140/45 the most flexible stand-alone PLL clock generator available.

特性 Features

• Extremely flexible and low-jitter phase locked loop (PLL) frequency synthesis
• No external loop filter components needed
• 150 MHz CMOS or 340 MHz PECL outputs
• Completely configurable via I2C-bus
• Up to four FS714x can be used on a single I2C-bus
• 3.3 V operation
• Independent on-chip crystal oscillator and external reference input
• Very low cumulative jitter

应用 Application

• Precision frequency synthesis
• Low-frequency clock multiplication
• Laser beam printers (FS7145)
• Video line-locked clock generation

简介

FS7140属于集成电路（IC）的时钟发生器PLL频率合成器。由制造生产的FS7140时钟发生器，PLL，频率合成器时钟发生器、PLL 和频率合成器集成电路 (IC) 可为逻辑器件提供参考信号的稳定定时脉冲，这些器件包括计算机、微控制器、数据通信系统和图形/视频发生器。这些集成电路可能包括缓冲器、驱动器、分频器、倍频器、多路复用器、合成器、扇出分配器和预分频器。