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8537AY-01T PDF预览

8537AY-01T

更新时间: 2024-02-10 04:04:15
品牌 Logo 应用领域
艾迪悌 - IDT 驱动逻辑集成电路
页数 文件大小 规格书
14页 121K
描述
Clock Driver, 5V Series, 2 True Output(s), 2 Inverted Output(s), PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBC, LQFP-48

8537AY-01T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:QFP
包装说明:LFQFP, QFP48,.35SQ,20针数:48
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.12
系列:5V输入调节:STANDARD
JESD-30 代码:S-PQFP-G48JESD-609代码:e0
长度:7 mm逻辑集成电路类型:CLOCK DRIVER
功能数量:6反相输出次数:2
端子数量:48实输出次数:2
最高工作温度:85 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:LFQFP
封装等效代码:QFP48,.35SQ,20封装形状:SQUARE
封装形式:FLATPACK峰值回流温度(摄氏度):240
电源:2.5/3.3 VProp。Delay @ Nom-Sup:1.5 ns
传播延迟(tpd):1.5 ns认证状态:Not Qualified
Same Edge Skew-Max(tskwd):0.13 ns座面最大高度:1.6 mm
子类别:Clock Drivers最大供电电压 (Vsup):3.465 V
最小供电电压 (Vsup):2.375 V标称供电电压 (Vsup):3.3 V
表面贴装:YES温度等级:OTHER
端子面层:TIN LEAD端子形式:GULL WING
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:20宽度:7 mm
最小 fmax:700 MHzBase Number Matches:1

8537AY-01T 数据手册

 浏览型号8537AY-01T的Datasheet PDF文件第4页浏览型号8537AY-01T的Datasheet PDF文件第5页浏览型号8537AY-01T的Datasheet PDF文件第6页浏览型号8537AY-01T的Datasheet PDF文件第8页浏览型号8537AY-01T的Datasheet PDF文件第9页浏览型号8537AY-01T的Datasheet PDF文件第10页 
ICS8537-01  
HEX, LOW SKEW, 1-TO-2  
DIFFERENTIAL-TO-3.3V/2.5V LVPECL CLOCK BUFFER  
APPLICATION INFORMATION  
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS  
Figure 1 shows how the differential input can be wired to accept  
single ended levels. The reference voltage V_REF = VCC/2 is  
generated by the bias resistors R1, R2 and C1.This bias circuit  
should be located as close as possible to the input pin.The ratio  
of R1 and R2 might need to be adjusted to position theV_REF in  
the center of the input voltage swing. For example, if the input  
clock swing is only 2.5V andVCC = 3.3V, V_REF should be 1.25V  
and R2/R1 = 0.609.  
VCC  
R1  
1K  
Single Ended Clock Input  
V_REF  
CLKx  
nCLKx  
C1  
0.1u  
R2  
1K  
FIGURE 1. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT  
TERMINATION FOR LVPECL OUTPUTS  
The clock layout topology shown below is a typical termina- 50Ω transmission lines. Matched impedance techniques should  
tion for LVPECL outputs.The two different layouts mentioned be used to maximize operating frequency and minimize signal  
are recommended only as guidelines.  
distortion. Figures 2A and 2B show two different layouts which  
are recommended only as guidelines. Other suitable clock lay-  
outs may exist and it would be recommended that the board  
designers simulate to guarantee compatibility across all printed  
circuit and clock component process variations.  
FOUT and nFOUT are low impedance follower outputs that gen-  
erate ECL/LVPECL compatible outputs.Therefore, terminating  
resistors (DC current path to ground) or current sources must  
be used for functionality. These outputs are designed to drive  
3.3V  
Zo = 50Ω  
5
2
5
Zo  
Zo  
2
FIN  
FOUT  
Zo = 50Ω  
Zo = 50Ω  
Zo = 50Ω  
FOUT  
FIN  
50Ω  
50Ω  
VCC - 2V  
RTT  
1
3
2
3
2
Zo  
RTT =  
Zo  
Zo  
(VOH + VOL / VCC –2) –2  
FIGURE 2A. LVPECL OUTPUT TERMINATION  
FIGURE 2B. LVPECL OUTPUT TERMINATION  
8537AY-01  
www.idt.com  
REV.B NOVEMBER 22, 2010  
7

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