Datasheet > SY89844U_10

SY89844U_10

更新时间： 2024-01-15 09:05:17

品牌	Logo	应用领域
麦瑞 - MICREL		脉冲
页数	文件大小	规格书
18页	596K
描述
Precision LVDS Runt Pulse Eliminator 2:1

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数据手册

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SY89844U_10 数据手册

SY89844U

Precision LVDS Runt Pulse Eliminator 2:1

MUX with 1:2 Fanout and Internal Termination

General Description

The SY89844U is a low jitter LVDS, 2:1 input

multiplexer (MUX) optimized for redundant source

Precision Edge^®

switchover

applications.

Unlike

standard

multiplexers, the SY89844U 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).

Features

• Selects between two sources, and provides a

glitch-free, stable LVDS output

• Guaranteed AC performance over temperature

and supply voltage:

– wide operating frequency: 1kHz to >1.5GHz

– <870ps In-to-Out t_pd

– <150ps 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 outputs are 325mV LVDS with fast

rise/fall times guaranteed to be less than 150ps.

• Unique patent-pending input isolation design

minimizes crosstalk

• Fail-Safe Input prevents oscillations

• Ultra-low jitter design:

– <1ps_RMSrandom jitter

The SY89844U operates from a 2.5V ±5% supply

and is guaranteed over the full industrial

temperature range of –40°C to +85°C. The

SY89844U is part of Micrel’s high-speed, Precision

Edge^®product line.

– <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)

All support documentation can be found on Micrel’s

web site at: www.micrel.com.

• 325mV LVDS output swing

• 2.5V +5% power supply

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

• Available in 24-pin (4mm x 4mm) QFN package

Applications

• Redundant clock switchover

• Fail-safe clock protection

Markets

• LAN/WAN

• Enterprise servers

• ATE

• Test and measurement

Precision Edge is a registered trademark of Micrel, Inc.

May 2007

M9999-052207-B

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

12 3 4 5 6 7...18

中文翻译

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与SY89844U_10相关器件

型号	品牌	获取价格	描述	数据表
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
SY89845UMG	MICREL	获取价格	PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845UMGTR	MICREL	获取价格	PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845UMG-TR	MICREL	获取价格	Multiplexer, 89845 Series, 1-Func, 2 Line Input, 1 Line Output, Complementary Output, 4 X
SY89846U	MICREL	获取价格	1.5GHz Precision, LVPECL 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termina
SY89846U	MICROCHIP	获取价格	The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout buffer with a 2:1 differential input multipl

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