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SY89845UMGTR PDF预览

SY89845UMGTR

更新时间: 2024-02-11 14:07:20
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
18页 609K
描述
PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION

SY89845UMGTR 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:HVQCCN,Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.78
其他特性:ALSO OPERATES WITH 3.3V SUPPLY系列:89845
JESD-30 代码:S-XQCC-N24JESD-609代码:e4
长度:4 mm逻辑集成电路类型:MULTIPLEXER
湿度敏感等级:2功能数量:1
输入次数:2输出次数:1
端子数量:24最高工作温度:85 °C
最低工作温度:-40 °C输出极性:COMPLEMENTARY
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260传播延迟(tpd):0.84 ns
认证状态:Not Qualified座面最大高度:0.9 mm
最大供电电压 (Vsup):2.625 V最小供电电压 (Vsup):2.375 V
标称供电电压 (Vsup):2.5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:40
宽度:4 mmBase Number Matches:1

SY89845UMGTR 数据手册

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SY89845U  
Precision CML Runt Pulse Eliminator 2:1 MUX  
with 1:2 Fanout and Internal Termination  
General Description  
The SY89845U is a low jitter CML, 2:1 differential  
input multiplexer (MUX) optimized for redundant  
source switchover applications. Unlike standard  
multiplexers, the SY89845U 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 CML output  
Guaranteed AC performance over temperature and  
supply voltage:  
– Wide operating frequency: 1kHz to >1.5GHz  
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 (200mVPP) without any  
level shifting or termination resistor networks in the  
signal path. The outputs are 400mV CML with fast  
rise/fall times guaranteed to be less than 80ps.  
– < 840ps In-to-Out tpd  
– < 80ps tr/tf  
Unique, patent-pending input isolation design  
minimizes crosstalk  
Fail-Safe Input prevents oscillations  
Ultra-low jitter design:  
– <1psRMS random jitter  
The SY89845U 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  
SY89845U is part of Micrel’s high-speed, Precision  
Edge® product line.  
– <1psRMS cycle-to-cycle jitter  
– <10psPP total jitter (clock)  
– <0.7psRMS MUX crosstalk induced jitter  
Unique patented 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.  
400mV CML output swing  
2.5V ±5% or 3.3V ±10% supply voltage  
-40°C to +85°C industrial temperature range  
Available in 24-pin (4mm x 4mm) MLF™ 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.  
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  
M9999-052405  
hbwhelp@micrel.com or (408) 955-1690  
May 2005  

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