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8421002AGILFT PDF预览

8421002AGILFT

更新时间: 2024-01-16 03:22:27
品牌 Logo 应用领域
艾迪悌 - IDT 时钟光电二极管外围集成电路晶体
页数 文件大小 规格书
15页 1081K
描述
Clock Generator, 226.66MHz, PDSO20, 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-20

8421002AGILFT 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-20
针数:20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.79其他特性:ALSO OPERATES AT 3.3V SUPPLY
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:6.5 mm湿度敏感等级:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C最大输出时钟频率:226.66 MHz
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH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:28.33 MHz
认证状态:Not Qualified座面最大高度:1.2 mm
子类别:Clock Generators最大压摆率:110 mA
最大供电电压:2.625 V最小供电电压:2.375 V
标称供电电压:2.5 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:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:4.4 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

8421002AGILFT 数据手册

 浏览型号8421002AGILFT的Datasheet PDF文件第5页浏览型号8421002AGILFT的Datasheet PDF文件第6页浏览型号8421002AGILFT的Datasheet PDF文件第7页浏览型号8421002AGILFT的Datasheet PDF文件第9页浏览型号8421002AGILFT的Datasheet PDF文件第10页浏览型号8421002AGILFT的Datasheet PDF文件第11页 
ICS8421002I  
FEMTOCLOCKS™ CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER  
APPLICATION INFORMATION  
POWER SUPPLY FILTERING TECHNIQUES  
As in any high speed analog circuitry, the power supply pins  
are vulnerable to random noise. The ICS8421002I provides  
separate power supplies to isolate any high switching  
noise from the outputs to the internal PLL. VDD, VDDA, and VDDO  
should be individually connected to the power supply  
plane through vias, and bypass capacitors should be  
used for each pin.To achieve optimum jitter performance, power  
supply isolation is required. Figure 1 illustrates how  
a 10resistor along with a 10µF and a .01µF bypass  
3.3V or 2.5V  
VDD  
.01µF  
.01µF  
10Ω  
VDDA  
10µF  
capacitor should be connected to each VDDA  
.
FIGURE 1. POWER SUPPLY FILTERING  
CRYSTAL INPUT INTERFACE  
The ICS8421002I has been characterized with 18pF parallel  
resonant crystals.The capacitor values shown in Figure 2 below  
were determined using a 26.5625MHz 18pF parallel resonant  
crystal and were chosen to minimize the ppm error.  
XTAL_OUT  
XTAL_IN  
C1  
22p  
X1  
18pF Parallel Crystal  
C2  
22p  
Figure 2. CRYSTAL INPUt INTERFACE  
RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS  
INPUTS:  
OUTPUTS:  
HSTL OUTPUT  
CRYSTAL INPUT:  
For applications not requiring the use of the crystal oscillator input,  
both XTAL_IN and XTAL_OUT can be left floating. Though not  
required, but for additional protection, a 1kresistor can be tied  
from XTAL_IN to ground.  
All unused HSTL outputs can be left floating. We recommend  
that there is no trace attached. Both sides of the differential output  
pair should either be left floating or terminated.  
REF_CLK INPUT:  
For applications not requiring the use of the reference clock,  
it can be left floating. Though not required, but for additional  
protection, a 1kresistor can be tied from the REF_CLK to  
ground.  
LVCMOS CONTROL PINS:  
All control pins have internal pull-ups or pull-downs; additional  
resistance is not required but can be added for additional  
protection. A 1kresistor can be used.  
IDT/ ICSHSTL FREQUENCY SYNTHESIZER  
8
ICS8421002I REV B MARCH 02, 2009  

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