Datasheet > SY89474U

SY89474U

更新时间： 2024-11-12 14:53:51

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
11页	465K
描述
The SY89474U is a 2.5V precision, high-speed 2:1 differential MUX capable of processing clocks up

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SY89474U 数据手册

SY89474U

Precision LVDS 2:1 Multiplexer with 1:2

Fanout and Internal Termination

General 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.

Precision Edge

Features

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 (200mV_PP) 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.

• 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 f_MAX(clock)

− <470ps In-to-Out tpd

− <150ps t_r/t_f

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 high-

speed, Precision Edge^®product line. For multiple clock

switchover solutions, please refer to the SY89840U–

SY89845U family.

− <20ps output-to-output skew

• Unique, patent-pending input isolation design

minimizes crosstalk

• Ultra-low jitter design:

All support documentation can be found on Micrel’s web

site at: www.micrel.com.

− <1ps_RMSrandom jitter

− <10ps_PPdeterministic jitter

− <1ps_RMScycle-to-cycle jitter

− <10ps_PPtotal jitter (clock)

− <0.7ps_RMScrosstalk induced jitter

Functional Block Diagram

• 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

Applications

• Clock switchover

• Data distribution

Markets

• LAN/WAN

• Enterprise Servers

• ATE

• Test and Measurement

Precision Edge is a registered trademark of Micrel, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-081105

hbwhelp@micrel.com or (408) 955-1690

August 2005

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与SY89474U相关器件

型号	品牌	获取价格	描述	数据表
SY89474U_10	MICREL	获取价格	Precision LVDS 2:1 Multiplexer with 1:2
SY89474UMGTR	MICREL	获取价格	Precision LVDS 2:1 Multiplexer with 1:2
SY89474UMG-TR	MICROCHIP	获取价格	89474 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC24
SY89475U	MICREL	获取价格	Precision LVPECL 2:1 Multiplexer with 1:2 Fanout and Internal Termination
SY89529L	MICREL	获取价格	3.3V 200MHz PRECISION SPREADSPECTRUM CLOCK SYNTHESIZER
SY89529LTC	MICREL	获取价格	3.3V 200MHz PRECISION SPREADSPECTRUM CLOCK SYNTHESIZER
SY89529LTCTR	MICREL	获取价格	3.3V 200MHz PRECISION SPREADSPECTRUM CLOCK SYNTHESIZER
SY89529LTH	MICREL	获取价格	3.3V 200MHz PRECISION SPREADSPECTRUM CLOCK SYNTHESIZER
SY89529LTHTR	MICREL	获取价格	3.3V 200MHz PRECISION SPREADSPECTRUM CLOCK SYNTHESIZER
SY89529LTHTR	MICROCHIP	获取价格	Processor Specific Clock Generator, 200MHz, PQFP32, LEAD FREE, TQFP-32

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