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SY89464UMY PDF预览

SY89464UMY

更新时间: 2024-09-30 15:53:19
品牌 Logo 应用领域
美国微芯 - MICROCHIP 驱动输出元件逻辑集成电路
页数 文件大小 规格书
19页 680K
描述
89464 SERIES, LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC44

SY89464UMY 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVQCCN,Reach Compliance Code:compliant
HTS代码:8542.39.00.01Factory Lead Time:8 weeks
风险等级:1.69其他特性:IT CAN ALSO OPERATE WITH 3V TO 3.6V
系列:89464输入调节:DIFFERENTIAL MUX
JESD-30 代码:S-XQCC-N44JESD-609代码:e3
长度:7 mm逻辑集成电路类型:LOW SKEW CLOCK DRIVER
湿度敏感等级:2功能数量:1
反相输出次数:端子数量:44
实输出次数:10最高工作温度:85 °C
最低工作温度:-40 °C输出特性:OPEN-EMITTER
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):1.15 ns
认证状态:Not QualifiedSame Edge Skew-Max(tskwd):0.025 ns
座面最大高度:1 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:Matte Tin (Sn)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:7 mm
最小 fmax:1500 MHzBase Number Matches:1

SY89464UMY 数据手册

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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 tpd  
– < 220ps tr/tf  
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 (200mVPP)  
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:  
– <1psRMS random jitter  
– <1psRMS cycle-to-cycle jitter  
– <10psPP total jitter (clock)  
– <0.7psRMS MUX 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  

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