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CY7B9945V-2AXCT PDF预览

CY7B9945V-2AXCT

更新时间: 2024-09-30 05:09:27
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 时钟驱动器逻辑集成电路
页数 文件大小 规格书
11页 259K
描述
High Speed Multi-phase PLL Clock Buffer

CY7B9945V-2AXCT 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:QFP包装说明:LQFP, QFP52,.47SQ
针数:52Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.31.00.01
风险等级:5.66系列:7B
输入调节:DIFFERENTIAL MUXJESD-30 代码:S-PQFP-G52
JESD-609代码:e3长度:10 mm
逻辑集成电路类型:PLL BASED CLOCK DRIVER最大I(ol):0.03 A
湿度敏感等级:3功能数量:2
反相输出次数:端子数量:52
实输出次数:10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:PLASTIC/EPOXY封装代码:LQFP
封装等效代码:QFP52,.47SQ封装形状:SQUARE
封装形式:FLATPACK, LOW PROFILE峰值回流温度(摄氏度):260
电源:3.3 VProp。Delay @ Nom-Sup:0.25 ns
传播延迟(tpd):0.25 ns认证状态:Not Qualified
Same Edge Skew-Max(tskwd):0.5 ns座面最大高度:1.6 mm
子类别:Clock Drivers最大供电电压 (Vsup):3.63 V
最小供电电压 (Vsup):2.97 V标称供电电压 (Vsup):3.3 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:10 mm
最小 fmax:200 MHzBase Number Matches:1

CY7B9945V-2AXCT 数据手册

 浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第2页浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第3页浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第4页浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第5页浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第6页浏览型号CY7B9945V-2AXCT的Datasheet PDF文件第7页 
RoboClock®  
CY7B9945V  
PRELIMINARY  
High Speed Multi-phase PLL Clock Buffer  
Features  
Functional Description  
500 ps max Total Timing Budget™ (TTB™) window  
24–200 MHz input and output operation  
Low output-output skew < 200 ps  
The CY7B9945V high speed multi-phase PLL clock buffer offers  
user selectable control over system clock functions. This multiple  
output clock driver provides the system integrator with functions  
necessary to optimize the timing of high performance computer  
and communication systems.  
10 + 1 LVTTL outputs driving 50W terminated lines  
Dedicated feedback output  
The device features a guaranteed maximum TTB window speci-  
fying all occurrences of output clocks. This includes the input  
reference clock across variations in output frequency, supply  
voltage, operating temperature, input edge rate, and process.  
Phase adjustments in 625/1300 ps steps up to +10.4 ns  
3.3V LVTTL/LVPECL, fault tolerant, and hot insertable  
reference inputs  
Ten configurable outputs each drive terminated transmission  
lines with impedances as low as 50W while delivering minimal  
and specified output skews at LVTTL levels. The outputs are  
arranged in two banks of four and six outputs. These banks  
enable a divide function of 1 to 12, with phase adjustments in 625  
ps–1300 ps increments up to ±10.4 ns. The dedicated feedback  
output enables divide-by functionality from 1 to 12 and limited  
phase adjustments. However, if needed, any one of the ten  
outputs can be connected to the feedback input as well as driving  
other inputs.  
Multiply or divide ratios of 1–6, 8, 10, and 12  
Individual output bank disable  
Output high impedance option for testing purposes  
Integrated phase locked loop (PLL) with lock indicator  
Low cycle-cycle jitter (<100 ps peak-peak)  
3.3V operation  
Selectable reference input is a fault tolerant feature that enables  
smooth change over to a secondary clock source when the  
primary clock source is not in operation. The reference inputs  
and feedback inputs are configurable to accommodate both  
LVTTL or Differential (LVPECL) inputs. The completely  
integrated PLL reduces jitter and simplifies board layout.  
Industrial temperature range: –40°C to +85°C  
52-pin 1.4 mm TQFP package  
Logic Block Diagram  
F S  
3
R E F A +  
R E F A -  
L O C K  
R E F B +  
R E F B -  
P L L  
R E F S E L  
F B K  
M O D E  
D iv id e  
a n d  
3
F B F 0  
Q F  
P h a s e  
S e le c t  
F B D S 0  
F B D S 1  
3
3
1 Q 0  
1 Q 1  
3
3
1 F 0  
1 F 1  
D iv id e  
a n d  
P h a s e  
S e le c t  
1 D S 0  
1 D S 1  
3
3
1 Q 2  
3
3
1 F 2  
1 F 3  
1 Q 3  
D IS 1  
2 Q 0  
2 Q 1  
3
3
3
3
2 F 0  
2 F 1  
D iv id e  
a n d  
P h a s e  
S e le c t  
2 Q 2  
2 Q 3  
2 Q 4  
2 D S 0  
2 D S 1  
2 Q 5  
D IS 2  
Cypress Semiconductor Corporation  
Document Number: 38-07336 Rev. *F  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised June 21, 2007  
[+] Feedback  

CY7B9945V-2AXCT 替代型号

型号 品牌 替代类型 描述 数据表
CY7B9945V-5AXC CYPRESS

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High Speed Multi-phase PLL Clock Buffer
CY7B9945V-2AXIT CYPRESS

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CY7B9945V-2AXC CYPRESS

完全替代

High Speed Multi-phase PLL Clock Buffer

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