SY89474U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 SY89474U is a 2.5V precision, high-speed 2:1 differential MUX capable of processing clocks up to 2.5GHz and data up to 2.5Gbps.The 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 any level shifting or termination resistor networks in the signal path. The output is 325mV LVDS with fast rise/fall times guaranteed to be less than 150ps.The SY89474U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89474U is part of Micrel's highspeed, Precision Edge® product line. For multiple clock switchover solutions, please refer to the SY89840U - SY89845U family.

特性 Features

• Selects between two input channels and provides two copies of the selected input
• Guaranteed AC performance over temperature and supply voltage:
• DC to 2.5Gbps data throughput
• DC to 2.5GHz fMAX (clock)
• <470ps In-to-Out tpd
• <150ps tr/tf
• <20ps output-to-output skew
• Unique, patent-pending input isolation design minimizes crosstalk
• Ultra-low jitter design:
• <1psRMS random jitter
• <10psPP deterministic jitter
• <1psRMS cycle-to-cycle jitter
• <10psPP total jitter (clock)
• <0.7psRMS crosstalk induced jitter
• Unique patent-pending input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
• 325mV LVDS output swing
• 2.5V ±5% supply voltage
• -40°C to +85°C industrial temperature range
• Available in 24-pin (4mm x 4mm) QFN package

简介

SY89474U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SY89474U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。