NB7N017M中文资料8-bit Divider with CML Output数据手册ONSEMI规格书

描述 Description

The NB7N017M is a high speed 8 bit dual modulusprogrammable divider/prescaler with 16 mA CML outputs capable of switching at input frequencies greater than 3.5 GHz. The CML output structure contains internal 50 ohm source termination resistor to VCC. The device generates 400 mV output amplitude with 50 ohm receiver resistor to VCC. This I/O structure enables easy implementation of the NB7N017M in 50 ohm systems.The differential inputs contain 50 ohm termination resistors to VT pads and all differential inputs accept RSECL, ECL, LVDS, LVCMOS, LVTTL, and CML. Internally, the NB7N017M uses a greater than 3.5 GHz 8 bit programmable down counter. A select pin, SEL, is used to select between two words, Pa(0:7) and Pb(0:7), that are stored in REGa and REGb respectively. Two parallel load pins, PLa and PLb, are used to load the level triggered programming registers, REGa and REGb,respectively. A differential clock enable, CE, pin is available.The NB7N017M offers a differential output, TC. Terminal count output, TC, goes high for one clock cycle when the counter has reached the all zeros state. To reduce output phase noise, TC is retimed with the rising edge triggered latches.

特性 Features

• Maximum Input Clock Frequency > 3.5 GHz Typical
• 50 ohm Internal Input and Output Termination Resistors
• All SingleEnded Control Pins CMOS and PECL/NECL Compatible
• Counter Programmed Using One of Two Single-Ended Words,Pa and Pb, Stored in REGa and REGb
• CML Output Level: 400 mV PeakPeak Output with 50 ohm Receiver Resistor to VCC
• 16 mA CML output with 50 ohm Internal Source Terminationto VCC
• Differential CLK, CE, and SEL Input
• Compatible with Existing 3.3 V LVEP, EP, and SG Devices
• PbFree Packages are Available

应用 Application

• PLL
• Divider

简介

NB7N017M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NB7N017M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。