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843256AGI-45LF PDF预览

843256AGI-45LF

更新时间: 2024-11-03 20:08:07
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
16页 676K
描述
Clock Generator, 156.25MHz, PDSO24, 5 X 4.40 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, TSSOP-24

843256AGI-45LF 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:HTSSOP, TSSOP24,.25针数:24
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.21
JESD-30 代码:R-PDSO-G24JESD-609代码:e3
长度:7.8 mm端子数量:24
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:156.25 MHz封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP24,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260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:1.1 mm子类别:Clock Generators
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

843256AGI-45LF 数据手册

 浏览型号843256AGI-45LF的Datasheet PDF文件第2页浏览型号843256AGI-45LF的Datasheet PDF文件第3页浏览型号843256AGI-45LF的Datasheet PDF文件第4页浏览型号843256AGI-45LF的Datasheet PDF文件第5页浏览型号843256AGI-45LF的Datasheet PDF文件第6页浏览型号843256AGI-45LF的Datasheet PDF文件第7页 
PRELIMINARY  
TM  
FEMTOCLOCK CRYSTAL-TO-  
ICS843256I-45  
3.3V LVPECL FREQUENCY SYNTHESIZER  
General Description  
Features  
The ICS843256I-45 is a two LVPECL output and  
Two differential LVPECL output pairs and  
S
four LVCMOS reference clock outputs  
IC  
four LVCMOS output Synthesizer optimized to  
generate Ethernet reference clock frequencies and  
is a member of the HiPerClocks™ family of high  
performance clock solutions from IDT. Using a  
HiPerClockS™  
Crystal oscillator interface designed for a 25MHz, 18pF parallel  
resonant crystal  
A 25MHz crystal generates output frequencies of: 25MHz,  
25MHz, 18pF parallel resonant crystal, the following frequencies  
can be generated: 25MHz, 156.25MHz and 125MHz. The  
ICS843256I-45 uses IDT’s 3rd generation low phase noise VCO  
technology and can achieve 1ps or lower typical rms phase jitter,  
easily meeting Ethernet jitter requirements. The ICS843256I-45 is  
packaged in a small 24-pin TSSOP E-Pad package.  
156.25MHz and 125MHz  
VCO frequency: 625MHz  
RMS Phase Jitter @ 125MHz, (1.875MHz – 20MHz) using a  
25MHz crystal: 0.47ps (typical)  
Full 3.3V supply mode  
-40°C to 85°C ambient operating temperature  
Available in both standard (RoHS 5) and lead-free (RoHS 6)  
packages  
Pin Assignment  
Block Diagram  
VCC  
CLK_ENA  
VEE  
1
2
24 CLK_ENB  
Pullup  
CLK_ENA  
23  
nc  
QA  
3
4
22  
VEEB  
25MHz  
÷5  
21 QB  
VEEA  
QA  
nQA  
XTAL_IN  
Phase  
Detector  
VCO  
5
6
7
20  
19  
18  
nQB  
VCCOB  
OSC  
625MHz  
nQA  
VCCOA  
QB  
XTAL_OUT  
V
EE  
÷4  
nQB  
8
9
10  
11  
12  
17 XTAL_IN  
nc  
nc  
VCCA  
16 XTAL_OUT  
Feedback Divider  
÷25  
15  
14  
REF_OUT3  
REF_OUT2  
Pullup  
VCCO_REFOUT  
REF_OUT0  
CLK_ENB  
13 REF_OUT1  
REF_OUT0  
REF_OUT1  
REF_OUT2  
REF_OUT3  
ICS843256I-45  
24-Lead TSSOP E-Pad  
4.4mm x 5.0mm x 0.925mm  
package body  
G Package  
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization and/or qualification.  
Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.  
IDT™ / ICS™ 3.3V LVPECL FREQUENCY SYNTHESIZER  
1
ICS843256AGI-45 REV. A JULY 10, 2008  

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