Datasheet > SY89846U

SY89846U

更新时间： 2024-09-29 14:55:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
15页	801K
描述
The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout buffer with a 2:1 differential input multiplexer (MU

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SY89846U 数据手册

SY89846U

1.5GHz Precision, LVPECL 1:5 Fanout with 2:1

MUX and Fail Safe Input with Internal

Termination

Precision Edge^®

General Description

Precision Edge^®

The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout

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

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 significantly

below 100mV).

Features

 Selects between two inputs, and provides 5 precision

LVPECL copies

 Fail-Safe Input

– Prevents outputs from oscillating when input is

invalid

 Guaranteed AC performance over temperature and

supply voltage:

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

internal termination architecture that can 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, LVPECL with fast rise/fall times

guaranteed to be less than 250ps.

– DC-to >1.5GHz throughput

– < 900ps Propagation Delay (IN-to-Q)

– < 250ps Rise/Fall times

 Ultra-low jitter design:

The SY89846U 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

SY89846U is part of Micrel’s high-speed, Precision

Edge^®product line.

– 150fs RMS phase jitter (Typ)

– 0.7ps_RMSMUX crosstalk induced jitter

 Unique, patented MUX input isolation design

minimizes adjacent channel crosstalk

 Unique patented internal 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.

 Wide input voltage range. VCC to GND

 2.5V ±5% or 3.3 ±10% supply voltage

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

 Available in 32-pin (5mm x 5mm) QFN package

Functional Block Diagram

Applications

 Fail-safe clock protection

 SONET clock distribution

 Backplane 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

M9999-072211B

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

Oct. 1, 2013

12 3 4 5 6 7...15

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与SY89846U相关器件

型号	品牌	获取价格	描述	数据表
SY89846U_11	MICREL	获取价格	1.5GHz Precision, LVPECL 1:5 Fanout with 2:1
SY89846UMG	MICREL	获取价格	1.5GHz Precision, LVPECL 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termina
SY89846UMGTR	MICREL	获取价格	1.5GHz Precision, LVPECL 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termina
SY89847U	MICREL	获取价格	1.5GHz Precision, LVDS 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Terminati
SY89847U	MICROCHIP	获取价格	The SY89847U is a 2.5V, 1:5 LVDS fanout buffer with a 2:1 differential input multiplexer (
SY89847U_10	MICREL	获取价格	1.5GHz Precision, LVDS 1:5 Fanout with 2:1
SY89847UMG	MICREL	获取价格	1.5GHz Precision, LVDS 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Terminati
SY89847UMG	MICROCHIP	获取价格	89847 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32
SY89847UMGTR	MICREL	获取价格	1.5GHz Precision, LVDS 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Terminati
SY89847UMG-TR	MICROCHIP	获取价格	89847 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32

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