NB4L6254中文资料2x2 Clock/Data Switch and Fanout Buffer数据手册ONSEMI规格书

描述 Description

The NB4L6254 is a differential 2x2 clock switch and drives precisely aligned clock signals through its LVPECL fanout buffers. It employs a fully differential architecture with bipolar technology, offers superior digital signal characteristics, has very low clock output skew and supports clock frequencies from DC up to 3.0GHz. The NB4L6254 is designed for the most demanding, skew critical differential clock distribution systems. Typical applications for the NB4L6254 are clock distribution, switching and data loopback systems of high-performance computer, networking and telecommunication systems, as well as on-board clocking of OC-3, OC-12 and OC-48 communication systems. In addition, the NB4L6254 can be configured as a single 1:6 or dual 1:3 LVPECL fanout buffer. The NB4L6254 can be operated from a single 3.3V or 2.5V power supply.

特性 Features

• Synchronous Output Enable
• Eliminates Output Runt PulseGeneration and Metastability
• Maximum Clock Input Frequency, 3 GHz
• Maximum Input Data Rate, 3 Gb/s
• Differential LVPECL Inputs and Outputs
• Low Output Skew: 50 ps Maximum Output to Output Skew

应用 Application

• Skew critical Clock Distribution, Clock switching and data loopback
• High performance computer, networking and telecommunications systems

简介

NB4L6254属于集成电路（IC）的时钟缓冲器驱动器。由制造生产的NB4L6254时钟缓冲器，驱动器时钟缓冲器和驱动器集成电路产品族中的产品用于帮助信号在系统中传输，常用作频率/时间参考信号，以同步系统内的活动。尽管这些器件最常用到的功能就是缓冲（即，为使信号不受驱动负载的影响而从某个信号源复制信号），但是该产品族中的某些器件还能执行其他功能，例如选择性改变缓冲信号路径、按某个整数值分割信号频率，或进行所用电信号格式转换。