SY89843UMG

更新时间： 2024-09-28 04:30:07

品牌	Logo	应用领域
麦瑞 - MICREL		逻辑集成电路脉冲
页数	文件大小	规格书
17页	738K
描述
Precision LVPECL Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination

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SY89843UMG 数据手册

SY89843U

Precision LVPECL Runt Pulse Eliminator 2:1

MUX with 1:2 Fanout and Internal Termination

General Description

The SY89843U is a low jitter PECL, 2:1 differential input

multiplexer (MUX) optimized for redundant source

switchover applications. Unlike standard multiplexers,

the SY89843U unique 2:1 Runt Pulse Eliminator (RPE)

MUX prevents any short cycles or “runt” pulses during

switchover. In addition, a unique Fail-Safe Input

protection prevents metastable conditions when the

selected input clock fails to a DC voltage (voltage

between the pins of the differential input drops below

100mV).

Precision Edge

Features

• Selects between two sources, and provides a glitch-free,

stable LVPECL output

• Guaranteed AC performance over temperature and supply

voltage:

– Wide operating frequency: 1kHz to >1.5GHz

– < 880ps In-to-Out t_pd

– < 190ps t_r/t_f

The differential input includes Micrel’s unique, 3-pin

input termination architecture that allows customers to

interface 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 800mV, 100K compatible LVPECL with fast

rise/fall times guaranteed to be less than 190ps.

• Unique patent-pending input isolation design minimizes

crosstalk

• Fail-Safe Input prevents oscillations

• Ultra-low jitter design:

– <1ps_RMSrandom jitter

– <1ps_RMScycle-to-cycle jitter

– <10ps_PPtotal jitter (clock)

– <0.7ps_RMSMUX crosstalk induced jitter

• Unique patent-pending input termination and VT pin

accepts DC- and AC-coupled inputs (CML, PECL, LVDS)

• 800mV LVPECL output swing

• 2.5V ±5% or 3.3V ±10% supply voltage

• –40°C to +85°C industrial temperature range

The SY89843U 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 SY89843U is

part of Micrel’s high-speed, Precision Edge product

line. All support documentation can be found on Micrel’s

web site at: www.micrel.com.

• Available in 24-pin (4mm x 4mm) MLF

™

package

Applications

• Redundant clock switchover

• Failsafe clock protection

Markets

• LAN/WAN

• Enterprise servers

• ATE

• Test and measurement

Precision Edge is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are trademarks of Amkor Technology, 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

M9999-031505

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

March 2005

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与SY89843UMG相关器件

型号	品牌	获取价格	描述	数据表
SY89843UMGTR	MICREL	获取价格	Precision LVPECL Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination
SY89843UMGTR	MICROCHIP	获取价格	89843 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC24, 4 X 4 MM, LEAD FR
SY89844U	MICREL	获取价格	Precision LVDS Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination
SY89844U	MICROCHIP	获取价格	The SY89844U is a low jitter LVDS, 2:1 input multiplexer (MUX) optimized for redundant sou
SY89844U_10	MICREL	获取价格	Precision LVDS Runt Pulse Eliminator 2:1
SY89844UMG	MICREL	获取价格	Precision LVDS Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination
SY89844UMGTR	MICREL	获取价格	Precision LVDS Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination
SY89845U	MICREL	获取价格	PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845U	MICROCHIP	获取价格	The SY89845U is a low jitter CML, 2:1 differential input multiplexer (MUX) optimized for r
SY89845U_10	MICREL	获取价格	Precision CML Runt Pulse Eliminator 2:1 MUX

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