SY100S811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 SY100S811 is a low skew 1-to-9 PECL differential driver designed for clock distribution in new, highperformance PECL systems. It accepts either a PECL clock input or a TTL input by using the TTL enable pin TEN. When the TTL enable pin is HIGH, the TTL input is enabled and the PECL input is disabled. When the enable pin is set LOW, the TTL input is disabled and the PECL input is enabled.The device is specifically designed and produced for low skew. The interconnect scheme and metal layout are carefully optimized for minimal gate-to-gate skew within the device. Wafer characterization and process control ensure consistent distribution of propagation delay from lot to lot. Since the S811 shares a common set of \"basic\" processing with the other members of the ECLinPS family, wafer characterization at the point of device personalization allows for tighter control of parameters, including propagation delay.To ensure that the skew specification is met, it is necessary that both sides of the differential output are terminated into 50Ω, even if only one side is being used. ln 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.The VBB output is intended for use as a reference voltage for single-ended reception of PECL signals to that device only. When using VBB for this purpose, it is recommended that VBB is decoupled to VCC via a 0.01µF capacitor.

特性 Features

·PECL version of popular ECLinPS E111
·Low skew
·Guaranteed skew spec
·VBB output
·TTL enable input
·Selectable TTL or PECL clock input
·Single +5V supply
·Differential internal design
·Similar pin configuration to E111
·PECL I/O fully compatible with industry standard
·Internal 75KΩ PECL input pull-down resistors
·Available in 28-pin PLCC and SOIC packages

简介

SY100S811属于集成电路（IC）的时钟缓冲器驱动器。由制造生产的SY100S811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。