NB7VQ58M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 NB7VQ58M is a high performance differential 2-to-1 Clock or Data multiplexer with a selectable Equalizer receiver. When placed in series with a Clock /Data path operating up to 7GHz or 10.7Gb/s, respectively, the NB7VQ58M inputs will compensate the degraded signal transmitted across an FR4 PCB backplane or cable interconnect. Therefore, the serial data rate is increased by reducing Inter-Symbol Interference (ISI) caused by losses in copper interconnect or long cables. The EQualizer ENable pin (EQEN) allows the INn/INnb inputs to either flow through or bypass the Equalizer section. Control of the Equalizer function is realized by setting EQEN; When EQEN is set Low, the INn / INnb inputs bypass the Equalizer. When EQEN is set High, the INn / INnb inputs flow through the Equalizer. The default state at start-up is LOW. As such, the NB7VQ58M is ideal for SONET, GigE, Fiber Channel, Backplane and other Clock/Data distribution applications. The differential inputs incorporate internal 50-ohm termination resistors that are accessed through the VT pin. This feature allows the NB7VQ58M to accept various logic level standards, such as LVPECL, CML or LVDS. The NB7VQ58M produces minimal Clock or Data jitter operating up to 7GHz or 10.7Gb/s, respectively. The 16mA differential CML outputs provide matching internal 50-ohm terminations and 400mV output swings when externally terminated with a 50-ohm resistor to VCC. The NB7VQ58M is offered in a low profile 3mm x3 mm 16-pin QFN package and is a member of the GigaComm family of high performance Clock / Data products.

特性 Features

Maximum Input Data Rate > 10.7Gb/s
Data Dependent Jitter
Maximum Input Clock Frequency > 7 GHz
Random Clock Jitter
150 ps Typical Propagation Delay
30ps Typical Rise and Fall Times
Differential CML Outputs, 400mV peak-to-peak, typical
Internal 50-ohm Input Termination Resistors
QFN-16 Package, 3mm x 3mm
-40C to +85C Ambient Operating Temperature

应用 Application

2:1 Multiplexer
Routers

简介

NB7VQ58M属于集成电路（IC）的时钟缓冲器驱动器。由制造生产的NB7VQ58M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。