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VCT2001A

更新时间: 2024-09-18 03:20:27
品牌 Logo 应用领域
西迪斯 - CTS 时钟发生器
页数 文件大小 规格书
5页 145K
描述
HCMOS Output-Dual Input Clock Generator

VCT2001A 技术参数

生命周期:Obsolete零件包装代码:SON
包装说明:SON,针数:14
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.84输入调节:STANDARD
JESD-30 代码:R-XDSO-N14逻辑集成电路类型:LOW SKEW CLOCK DRIVER
功能数量:1反相输出次数:
端子数量:14实输出次数:2
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE封装主体材料:UNSPECIFIED
封装代码:SON封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
座面最大高度:8.13 mm最大供电电压 (Vsup):3.5 V
最小供电电压 (Vsup):3.1 V标称供电电压 (Vsup):3.3 V
表面贴装:YES温度等级:COMMERCIAL
端子形式:NO LEAD端子节距:2.54 mm
端子位置:DUALBase Number Matches:1

VCT2001A 数据手册

 浏览型号VCT2001A的Datasheet PDF文件第2页浏览型号VCT2001A的Datasheet PDF文件第3页浏览型号VCT2001A的Datasheet PDF文件第4页浏览型号VCT2001A的Datasheet PDF文件第5页 
PRELIMINARY  
Module Data Sheet: VCT2001A 77.760 MHz  
Application: HCMOS Output-Dual Input Clock Generator  
1.0  
DESCRIPTION AND APPLICATION  
The VCT2001A is a dual reference input 3.3V clock generator module with an  
HCMOS output. Reference inputs are selectable by a one-bit select control input.  
An alarm output can be used to detect a problem on the selected reference, such as  
a loss of lock or a loss of reference. A logic level “1” is indicated from the alarm pin  
when there is a problem with the selected reference. The unit operates in the free run  
mode when there is a problem with the selected reference, or when free run is invoked by  
enabling the forced free run input. Free run accuracy will keep the output to within 20  
ppm. The reference will not automatically switch upon loss of reference. Also, all  
outputs may be tri-stated for external testing purposes with a signal to the Tri-State/Reset  
input.  
The Loss of Reference alarm detects a missing rising edge within 100 nS of the  
missing edge. This is usually around 70 nS.  
The 8kHz output is divided from the on-board low jitter oscillator. Output phase  
coherence is maintained during reference switching rearrangement, so the output phase  
will not necessarily be the same as the reference being used.  
The dimensions of the low jitter module are 0.78” x 0.83” x 0.29” mounted on a  
castellated pin FR-4 board.  
FEATURES:  
Output jitter below 1 ps from 12 kHz to 20 MHz  
• Two Selectable References @ 8 kHz  
• Alarm Output Detecting Loss of Reference or Loss of Lock  
• Tri-Statable Outputs  
• Force Free Run Function  
• Automatic Free Run Operation upon loss of both references  
• Rising Edge Phase Detector allows for any Duty Cycle Reference Input  
• 3.3 Volt Regulated Power Supply  
• Small Size: 0.78” x 0.83” x 0.29”  
• Surface Mount with Castellated Pins  
Page 1  
Rev. “4” 3/28/03  

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