SY89856U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 SY89856U is a 2.5V/3.3V precision, high-speed, 1:6 fanout capable of handling clocks up to 2.0GHz. A differential 2:1 MUX input is included for redundant clock switchover applications.The differential input includes Micrel's unique, 3-pin input termination architecture that allows the device to interface to any differential signal (AC- or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. The outputs are LVPECL (100k, temperature compensated), with extremely fast rise/fall times guaranteed to be less than 200ps.The SY89856U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89856U is part of Micrel's high-speed, Precision Edge® product line.

特性 Features

• 6 ultra-low skew copies of the selected input
• 2:1 MUX input included for clock switchover applications
• Low power: 225mW typical (2.5V)
• 2.5V to 3.3V supply voltage
• Unique input isolation design minimizes crosstalk
• Guaranteed AC performance over temperature and voltage:
• Clock frequency range: DC to >2.0GHz
• <400ps IN-to-OUT tpd
• <200ps tr/tf times
• <30ps skew (output-to-output)
• Ultra-low jitter design:
• 40fsRMS phase jitter
• <0.7psRMS crosstalk-induced jitter
• Unique input termination and VT pin accepts DCand AC-coupled inputs (CML, PECL, LVDS)
• 100k LVPECL compatible output swing
• -40°C to +85°C industrial temperature range
• Available in 32-pin (5mm x 5mm) QFN package

简介

SY89856U属于集成电路（IC）的时钟缓冲器驱动器。由制造生产的SY89856U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。