NB7VQ572M数据手册集成电路（IC）的时钟缓冲器驱动器规格书PDF

描述 Description

The NB7VQ572M is a high performance differential 4:1 Clock / Data input multiplexer and a 1:2 CML Clock / Data fanout buffer that operates up to 7 GHz / 10 Gbps respectively with a 1.8 V, 2.5 V, or 3.3 V power supply. Each INx / INx input pair incorporates a fixed Equalizer Receiver, which when placed in series with a Data path, will enhance the degraded signal transmitted across an FR4 backplane or cable interconnect. For applications that do not require Equalization, consider the NB7V572M, which is pin-compatible to the NB7VQ572M. The differential Clock / Data inputs have internal 50-ohm termination resistors and will accept differential LVPECL, CML, or LVDS logic levels. The NB7VQ572M incorporates a pair of Select pins that will choose one of four differential inputs and will produce two identical CML output copies of Clock or Data. As such, the NB7VQ572M is ideal for SONET, GigE, Fiber Channel, Backplane and other Clock/Data distribution applications. The two differential CML outputs will swing 400mV when externally loaded and terminated with a 50-ohm resistor to VCC and are optimized for low skew and minimal jitter. The NB7VQ572M is a member of the GigaComm™ family of high performance clock products.

特性 Features

• Input Data Rate > 11 Gb/s Typical
• Data Dependent Jitter
• Maximum Input Clock Frequency > 7 GHz Typical
• Random Clock Jitter
• Fixed Input Equalization
• Low Skew 1:2 CML Outputs,
• 4:1 MultiLevel Mux Inputs, accepts LVPECL, CML LVDS
• 175 ps Typical Propagation Delay
• 45 ps Typical Rise and Fall Times
• Differential CML Outputs, 400mV peak-to-peak, typical
• Operating Range: 1.8 V +/-5%, 2.5 V +/-5% or 3.3 V +/-10%
• Internal 50-ohm Input Termination Resistors
• VREFAC Reference Output
• -40°C to +85°C Ambient Operating Temperature

应用 Application

• SONET/SDH, Fibre Channel and Gigabit Ethernet Clock/Data Multiplexing and Distribution
• Servers and Routers

简介

NB7VQ572M属于集成电路（IC）的时钟缓冲器驱动器。由制造生产的NB7VQ572M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。