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845254AKILF PDF预览

845254AKILF

更新时间: 2024-01-16 04:40:25
品牌 Logo 应用领域
艾迪悌 - IDT 时钟外围集成电路晶体
页数 文件大小 规格书
20页 246K
描述
FemtoClock Crystal-to-3.3V, 2.5V

845254AKILF 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:VFQFPN
包装说明:VFQFN-32针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.8
其他特性:CAN ALSO OPERATES AT 2.5V SUPPLYJESD-30 代码:S-XQCC-N32
JESD-609代码:e3长度:5 mm
湿度敏感等级:3端子数量:32
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:312.5 MHz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
峰值回流温度(摄氏度):260电源:2.5/3.3 V
主时钟/晶体标称频率:25 MHz认证状态:Not Qualified
座面最大高度:1 mm子类别:Clock Generators
最大压摆率:88 mA最大供电电压:3.465 V
最小供电电压:3.135 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn) - annealed
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:NOT SPECIFIED
宽度:5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

845254AKILF 数据手册

 浏览型号845254AKILF的Datasheet PDF文件第1页浏览型号845254AKILF的Datasheet PDF文件第2页浏览型号845254AKILF的Datasheet PDF文件第4页浏览型号845254AKILF的Datasheet PDF文件第5页浏览型号845254AKILF的Datasheet PDF文件第6页浏览型号845254AKILF的Datasheet PDF文件第7页 
845254 Data Sheet  
FEMTOCLOCK® CRYSTAL-TO-CML CLOCK GENERATOR  
Function Tables  
Table 3A. PLL Reference Clock Select Function Table  
Input  
REF_SEL  
0 (default)  
1
Operation  
The crystal interface is the selected reference clock.  
The REF_CLK input is the selected reference clock.  
NOTE: REF_SEL is an asynchronous control.  
Table 3B. PLL Feedback Select Function Table  
Input  
FBSEL  
0 (default)  
1
Operation  
VCO = fREF * 25  
fVCO = fREF * 20  
f
NOTE: FBSEL is an asynchronous control.  
Table 3C. Output Divider Select Function Table  
Input  
Output Frequency fOUT with fREF = 25MHz  
FSEL1  
FSEL0  
Operation  
FBSEL = 0  
312.5MHz  
156.25MHz  
125MHz  
FBSEL = 1  
0 (default)  
0 (default) fOUT = fVCO ÷ 2  
250MHz  
125MHz  
100MHz  
50MHz  
0
1
1
1
0
1
fOUT = fVCO ÷ 4  
fOUT = fVCO ÷ 5  
fOUT = fVCO ÷ 10  
62.5MHz  
NOTE: FSEL[1:0] are asynchronous controls.  
Table 3D. PLL nBYPASS Function Table  
Input  
nBYPASS  
Operation  
PLL is bypassed. The reference frequency fREF is divided by the selected  
output divider. AC specifications do not apply in PLL bypass mode.  
0
PLL is enabled. The reference frequency fREF is multiplied by the selected  
feedback divider and then divided by the selected output divider.  
1 (default)  
NOTE: nBYPASS is an asynchronous control.  
Table 3E. Output Enable Function Table  
Input  
nOE  
0 (default)  
1
Operation  
Outputs enabled.  
Outputs disabled (high-impedance).  
NOTE: nOE is an asynchronous control.  
845254 REVISION B 08/25/15  
3
©2015 Integrated Device Technology, Inc.  

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