描述 Description

The SY89547L is a precision, high-speed 4:1 differential multiplexer that provides two copies of the selected input. The high speed LVDS (350mV) compatible outputs with a guaranteed throughput of up to 3.2Gbps over temperature and voltage.The SY89547L differential inputs include Micrel's unique, 3-pin internal termination design that allows access to the termination network through a VT?pin. This feature allows the device to easily interface to different logic standards, both AC- and DC-coupled without external resistor-bias and termination networks. The result is a clean, stub-free, low jitter interface solution.The SY89547L operates from a single 3.3V supply, and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require a 2.5V supply, consider the SY89546U. For applications that only require one differential output, consider the SY89544U or SY89545L. The SY89547L is part of a Micrel's Precision Edge??product family.

特性 Features

? Selects among four differential inputs
? Provides two copies of the selected input
? Guaranteed AC performance over temp and voltage:
? DC-to >3.2Gbps data rate throughput
? <620ps In-to-Out tpd
? <150ps tr/tf
? Unique input isolation design minimizes crosstalk
? Ultra-low jitter design:
? <1psRMS?random jitter
? <10psPP?deterministic jitter
? <10psPP?total jitter (clock)
? <0.7psRMS?crosstalk-induced jitter
? Internal input termination
? Unique input termination and VTpin accepts DCcoupled and AC-coupled inputs (LVDS, LVPECL, CML)
? 350mV LVDS output swing
? Power supply 3.3V ±10%
? -40°C to +85°C temperature range
? Available in 32-pin (5mm x 5mm) MLF??package

簡介

SY89547L屬于集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器。由制造生產(chǎn)的SY89547L信號開關(guān)，多路復(fù)用器，解碼器邏輯型信號開關(guān)、多路復(fù)用器和編碼器 IC 可用于對以數(shù)字格式表示數(shù)據(jù)的電信號進(jìn)行路由和選擇。這些器件與設(shè)計用于模擬信號的類似產(chǎn)品有所不同，它們保留的信息表示為兩個電狀態(tài)之一，而不是兩個外部界限內(nèi)的無窮變化量。