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SY89838U PDF预览

SY89838U

更新时间: 2024-02-22 14:06:31
品牌 Logo 应用领域
麦瑞 - MICREL 脉冲时钟
页数 文件大小 规格书
16页 410K
描述
Precision 1:8 LVDS Clock Fanout Buffer with 2:1 Runt Pulse Eliminator Input MUX

SY89838U 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVQCCN, LCC32,.2SQ,20Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:1.67
系列:89838输入调节:DIFFERENTIAL MUX
JESD-30 代码:S-XQCC-N32JESD-609代码:e4
长度:5 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:32
实输出次数:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装等效代码:LCC32,.2SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
包装方法:TR最大电源电流(ICC):350 mA
Prop。Delay @ Nom-Sup:0.04 ns传播延迟(tpd):0.95 ns
认证状态:Not QualifiedSame Edge Skew-Max(tskwd):0.04 ns
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
宽度:5 mm最小 fmax:1500 MHz
Base Number Matches:1

SY89838U 数据手册

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SY89838U  
Precision 1:8 LVDS Clock Fanout Buffer  
with 2:1 Runt Pulse Eliminator Input MUX  
General Description  
The SY89838U is a low jitter, low skew, high-speed  
1:8 fanout buffer with a unique, 2:1 differential input  
multiplexer (MUX) optimized for redundant source  
Precision Edge®  
Features  
switchover  
applications.  
Unlike  
standard  
Selects between two clocks, and provides 8  
multiplexers, the SY89838U 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). The  
SY89838U distributes clock frequencies from 1kHz  
to 1.5GHz, guaranteed, over temperature and  
voltage.  
precision, low skew LVDS output copies  
2:1 MUX input provides a glitch-free, stable LVDS  
output  
Guaranteed AC performance over temperature  
and supply voltage:  
– Wide operating frequency: 1kHz to >1.5GHz  
– <150ps tr/tf  
– <40ps output-to-output skew  
Unique patent-pending input isolation design  
minimizes crosstalk  
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 350mV compatible  
LVDS with fast rise/fall times guaranteed to be less  
than 150ps.  
Fail-safe input prevents oscillation  
Ultra-low jitter design:  
– <1psRMS random jitter  
– <1psRMS cycle-to-cycle jitter  
– <10psPP total jitter (clock)  
– <0.7psRMS MUX crosstalk induced jitter  
Unique patent-pending input termination and VT  
pin accepts DC- and AC-coupled inputs (CML,  
PECL, LVDS)  
The SY89838U operates from a 2.5V ±5% supply  
and is guaranteed over the full industrial  
temperature range of –40°C to +85°C. For  
applications that require 800mV LVPECL outputs,  
consider the SY89837U. The SY89838U is part of  
Micrel’s high-speed, Precision Edge® product line.  
350mV LVDS output swing  
Power supply 2.5V +5%  
–40°C to +85°C industrial temperature range  
Available in 32-pin (5mm x 5mm) MLF® package  
All support documentation can be found on Micrel’s  
web site at: www.micrel.com.  
Applications  
Redundant clock switchover  
Failsafe clock protection  
Markets  
LAN/WAN  
Enterprise Servers  
ATE  
Test and Measurements  
Precision Edge is a registered trademark of Micrel, Inc  
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.  
September 2006  
M9999-091906-B  
hbwhelp@micrel.com or (408) 955-1690  

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