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8431AMI-21 PDF预览

8431AMI-21

更新时间: 2024-02-15 15:20:32
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
18页 218K
描述
Clock Generator, 350MHz, PDSO28, 7.50 X 18.05 MM, 2.25 MM HEIGHT, MS-013, MO-119, SOIC-28

8431AMI-21 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SOIC包装说明:7.50 X 18.05 MM, 2.25 MM HEIGHT, MS-013, MO-119, SOIC-28
针数:28Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.77JESD-30 代码:R-PDSO-G28
JESD-609代码:e0长度:18.05 mm
湿度敏感等级:1端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:350 MHz封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP28,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):225电源: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:2.65 mm子类别:Clock Generators
最大压摆率:155 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:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:7.5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

8431AMI-21 数据手册

 浏览型号8431AMI-21的Datasheet PDF文件第2页浏览型号8431AMI-21的Datasheet PDF文件第3页浏览型号8431AMI-21的Datasheet PDF文件第4页浏览型号8431AMI-21的Datasheet PDF文件第5页浏览型号8431AMI-21的Datasheet PDF文件第6页浏览型号8431AMI-21的Datasheet PDF文件第7页 
ICS8431I-21  
350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-  
TO-3.3V LVPECL FREQUENCY SYNTHESIZER  
GENERAL DESCRIPTION  
FEATURES  
Fully integrated PLL  
The ICS8431I-21 is a general purpose clock frequency  
synthesizer for IA64/32 application. The VCO operates at a  
frequency range of 250MHz to 700MHz providing an output  
frequency range of 62.5MHz to 350MHz.The output frequency  
can be programmed using the parallel interface, M0 through  
M8 to the configuration logic, and the output divider control  
pin, DIV_SEL. Spread spectrum clocking is programmed via  
the control inputs SSC_CTL0 and SSC_CTL1.  
Differential 3.3V LVPECL output  
Crystal oscillator interface  
Output frequency range: 62.5MHz to 350MHz  
Crystal input frequency range: 14MHz to 25MHz  
VCO range: 250MHz to 700MHz  
Programmable features of the ICS8431I-21 support four Programmable PLL loop divider for generating a variety  
of output frequencies  
operational modes. The four modes are spread spectrum  
clocking (SSC), non-spread spectrum clock and two test  
modes which are controlled by the SSC_CTL[1:0] pins.  
Unlike other synthesizers, the ICS8431I-21 can immedi-  
ately change spread-spectrum operation without having to  
reset the device.  
Spread Spectrum Clocking (SSC) fixed at 1/2% modulation  
for environments requiring ultra low EMI  
PLL bypass modes supporting in-circuit testing and on-chip  
functional block characterization  
Cycle-to-cycle jitter: 30ps (maximum)  
3.3V supply voltage  
In SSC mode, the output clock is modulated in order to  
achieve a reduction in EMI. In one of the PLL bypass test  
modes, the PLL is disconnected as the source to the differ-  
ential output allowing an external source to be connected  
to the TEST_I/O pin. This is useful for in-circuit testing and  
allows the differential output to be driven at a lower  
frequency throughout the system clock tree. In the other  
PLL bypass mode, the oscillator divider is used as the  
source to both the M and the Fout divide by 2. This is useful  
for characterizing the oscillator and internal dividers.  
-40°C to 85°C ambient operating temperature  
Replaces ICS8431I-01  
Available in both, Standard and RoHS/Lead-Free  
compliant packages  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
M0  
M1  
M2  
M3  
M4  
M5  
M6  
M7  
M8  
1
2
3
4
5
6
7
8
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
nP_LOAD  
VCC  
XTAL_IN  
XTAL_OUT  
nc  
nc  
VCCA  
VEE  
MR  
DIV_SEL  
VCCO  
FOUT  
nFOUT  
VEE  
XTAL_IN  
OSC  
XTAL_OUT  
÷ 16  
PLL  
9
PHASE  
DETECTOR  
SSC_CTL0  
SSC_CTL1  
VEE  
TEST_I/O  
VCC  
10  
11  
12  
13  
14  
÷2  
VCO  
÷4  
FOUT  
nFOUT  
÷ M  
ICS8431I-21  
28-Lead SOIC  
TEST_I/O  
7.5mm x 18.05mm x 2.25mm package body  
M Package  
TopView  
SSC  
Control  
Logic  
Configuration  
Logic  
M0:M8  
nP_LOAD  
SSC_CTL0  
SSC_CTL1  
DIV_SEL  
8431AMI-21  
www.idt.com  
REV. A NOVEMBER 22, 2010  
1

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