Datasheet > SY89464U_10

SY89464U_10

更新时间： 2024-09-30 07:20:11

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
19页	681K
描述
Precision LVPECL 1:10 Fanout with 2:1 Runt

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SY89464U_10 数据手册

SY89464U

Precision LVPECL 1:10 Fanout with 2:1 Runt

Pulse Eliminator MUX and Internal Termination

General Description

The SY89464U is a low jitter 1:10 LVPECL fanout

buffer with a 2:1 differential input multiplexer (MUX)

optimized for redundant source switchover

applications. Unlike standard multiplexers, the

SY89464U’s unique 2:1 Runt Pulse Eliminator

(RPE) MUX prevents any short cycles or “runt”

pulses during switchover. In addition, a unique Fail-

Safe Input (FSI) protection prevents metastable

output 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 10

precision LVPECL copies

• Guaranteed AC performance over temperature and

supply voltage:

– Wide operating frequency: 1kHz to >1.5GHz

– < 1100ps In-to-Out t_pd

– < 220ps t_r/t_f

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

internal 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 800mV,

100K-compatible LVPECL with fast rise/fall times

guaranteed to be less than 220ps.

• Unique, patent-pending MUX input isolation design

minimizes adjacent channel 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

The SY89464U 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

SY89464U is part of Micrel’s high-speed, Precision

Edge^®product line.

• Unique patented internal termination and VT pin

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

LVDS)

• 800mV LVPECL output

All support documentation can be found on Micrel’s

web site at: www.micrel.com.

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

• Output enable

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

• Available in 44-pin (7mm x 7mm) 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.

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

M9999-120607-C

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

December 2007

12 3 4 5 6 7...19

中文翻译

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与SY89464U_10相关器件

型号	品牌	获取价格	描述	数据表
SY89464UMG	MICREL	获取价格	Precision LVPECL 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination
SY89464UMGTR	MICREL	获取价格	Precision LVPECL 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination
SY89464UMY	MICROCHIP	获取价格	89464 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC44
SY89464UMYTR	MICREL	获取价格	Precision LVPECL 1:10 Fanout with 2:1 Runt
SY89465U	MICREL	获取价格	Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination
SY89465U	MICROCHIP	获取价格	The SY89465U is a low-jitter, 1:10 LVDS fanout buffer with a 2:1 differential input multip
SY89465U_10	MICREL	获取价格	Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination
SY89465UMG	MICREL	获取价格	Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination
SY89465UMG	MICROCHIP	获取价格	89645 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC44
SY89465UMGTR	MICREL	获取价格	Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination

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