SY89859U数据手册集成电路（IC）的信号开关多路复用器解码器规格书PDF

描述 Description

The SY89859U is a low jitter, low-power, high-speed 8:1 multiplexer with a 1:2 differential fanout buffer optimized for precision telecom and enterprise server distribution applications. The SY89859U distributes clock frequencies from DC to >2.5GHz, and data rates to 2.5Gbps guaranteed over temperature and voltage.The SY89859U differential input includes Micrel's unique, 3-pin input termination architecture that directly interfaces to any differential signal (AC- or DC-coupled) as small as 100mV (200mVpp) without level shifting or termination resistor networks in the signal path. The outputs are 800mV, 100K-compatible LVPECL with extremely fast rise/fall time guaranteed to be less than 180ps.The SY89859U features a patent-pending isolation design that significantly improves on channel-to-channel crosstalk-induced jitter performance.The SY89859U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89859U is part of Micrel's high-speed, Precision Edge® product line.

特性 Features

• Selects between 1 of 8 inputs, and provides 2 precision, low skew 100K-compatible LVPECL output copies
• Low power: 150mW typ. (2.5V)
• Guaranteed AC performance over temperature and voltage:
• DC to >2.5Gbps
• DC to >2.5GHz
• <690ps propagation delay
• <180ps tr/tf time
• <20ps skew (output-to-output)
• Unique, patent-pending channel-to-channel isolation design provides superior crosstalk performance
• Ultra-low jitter design:
• <1psRMS random jitter
• <10psPP deterministic jitter
• <10psPP total jitter (clock)
• <1psRMS cycle-to-cycle jitter
• <0.7psRMS crosstalk-induced jitter
• Unique, patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
• Power supply 2.5V ±5% or 3.3V ±10%
• -40°C to +85°C industrial temperature range
• Available in 44-pin (7mm x 7mm) QFN package

简介

SY89859U属于集成电路（IC）的信号开关多路复用器解码器。由制造生产的SY89859U信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。