MC100E111中文资料5.0 V ECL 1:9 Differential Clock/Data Fanout Buffer数据手册ONSEMI规格书

描述 Description

The MC10E/100E111 is a low skew 1-to-9 differential driver, designed with clock distribution in mind. It accepts one signal input, which can be either differential or else single-ended if theVBB output is used. The signal is fanned out to 9 identical differential outputs. An enable input is also provided. A HIGH disables the device by forcing all Q outputs LOW and all Qbar outputs HIGH. The device is specifically designed, modeled and produced with low skew as the key goal. Optimal design and layout serve to minimize gate to gate skew within-device, and empirical modeling is used to determine process control limits that ensure consistent tpd distributions from lot to lot. The net result is a dependable, guaranteed low skew device. To ensure that the tight skew specification is met it is necessary that both sides of the differential output are terminated into 50 , even if only one side is being used. In most applications, all nine differential pairs will be used and therefore terminated. In the case where fewer than nine pairs are used, it is necessary to terminate at least the output pairs on the same package side (i.e. sharing the same VCCO ) as the pair(s) being used on that side, in order to maintain minimum skew. Failure to do this will result in small degradations of propagation delay (on the order of 10-20 ps) of the output(s) being used which, while not being catastrophic to most designs, will mean a loss of skew margin. The VBB pin, an internally generated voltage supply, is available to this device only. For single-ended input conditions, the unused differential input is connected to VBB as a switching reference voltage. VBB may also rebias AC coupled inputs. When used, decoupleVBB and VCC via a 0.01 F capacitor and limit current sourcing or sinking to 0.5 mA. When not used, VBB should be left open. The 100 Series contains temperature

特性 Features

• Guaranteed Skew Spec
• Differential Design
• VBB Output
• PECL Mode Operating Range: VCC = 4.2 V to 5.7 V with VEE = 0 V
• NECL Mode Operating Range: VCC = 0 V with VEE = -4.2 V to -5.7 V
• Internal Input Pulldown Resistors
• ESD Protection: > 3 KV HBM
• Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
• Moisture Sensitivity Level 1 (For Additional Information, see Application Note AND8003/D)
• Flammability Rating: UL-94 code V-0 @ 1/8 inch, Oxygen Index 28 to 34
• Transistor Count = 178 devices
• Pb-Free Packages are Available

简介

MC100E111属于集成电路（IC）的时钟缓冲器驱动器。由ONSEMI制造生产的MC100E111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。