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ICS8440258AK-46 PDF预览

ICS8440258AK-46

更新时间: 2024-09-13 05:39:03
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
16页 347K
描述
FEMTOCLOCK™ CRYSTAL/LVCMOS-TOLVDS/LVCMOS FREQUENCY SYNTHESIZER

ICS8440258AK-46 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:QFN
包装说明:HVQCCN,针数:32
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.29
JESD-30 代码:S-XQCC-N32JESD-609代码:e0
长度:5 mm端子数量:32
最高工作温度:70 °C最低工作温度:
最大输出时钟频率:125 MHz封装主体材料:UNSPECIFIED
封装代码:HVQCCN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):225
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:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
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:30
宽度:5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

ICS8440258AK-46 数据手册

 浏览型号ICS8440258AK-46的Datasheet PDF文件第2页浏览型号ICS8440258AK-46的Datasheet PDF文件第3页浏览型号ICS8440258AK-46的Datasheet PDF文件第4页浏览型号ICS8440258AK-46的Datasheet PDF文件第5页浏览型号ICS8440258AK-46的Datasheet PDF文件第6页浏览型号ICS8440258AK-46的Datasheet PDF文件第7页 
PRELIMINARY  
FEMTOCLOCK™ CRYSTAL/LVCMOS-TO-  
LVDS/LVCMOS FREQUENCY SYNTHESIZER  
ICS8440258-46  
GENERAL DESCRIPTION  
FEATURES  
The ICS8440258-46 is an 8 output synthesizer  
Four differential LVDS outputs at 125MHz  
ICS  
HiPerClockS™  
optimized to generate Ethernet clocks and a  
member of the HiPerClockS™family of high  
performance clock solutions from IDT. Using a  
25MHz, 18pF parallel resonant crystal, the device  
Two LVCMOS/LVTTL single-ended outputs at 125MHz  
Two LVCMOS/LVTTL single-ended outputs at 25MHz  
Selectable crystal oscillator interface or LVCMOS/LVTTL  
single-ended input  
will generate both 125MHz and 25MHz clocks with mixed  
LVDS and LVCMOS/LVTTL output logic. The ICS8440258-46  
uses IDT’s 3rd generations low phase noise VCO technology  
and can achieve <1ps typical rms phase jitter, easily meeting  
Ethernet jitter requirements. The ICS8440258-46 is packaged  
in a small, 5mm x 5mm VFQFN package.  
VCO range: 490MHz - 680MHz  
RMS phase jitter @ 125MHz, using a 25MHz crystal  
(1.875MHz - 20MHz): 0.34ps (typical)  
Full 2.5V operating supply  
0°C to 70°C ambient operating temperature  
Available in both standard (RoHS 5) and lead-free (RoHS6)  
packages  
PIN ASSIGNMENT  
32 31 30 29 28 27 26 25  
24  
23  
22  
21  
20  
19  
18  
17  
Q0  
nQ0  
GND  
Q1  
nc  
nc  
nc  
1
2
3
4
5
6
7
8
ICS8440258-46  
32-Lead VFQFN  
5mm x 5mm x 0.925mm  
package body  
GND  
Q7  
nQ1  
VDD  
VDDO2  
K Package  
Top View  
Q2  
Q6  
BLOCK DIAGRAM  
nQ2  
GND  
Pulldown  
9 10 11 12 13 14 15 16  
MR  
Q0  
Pulldown  
nPLL_SEL  
nQ0  
Q1  
nQ1  
Q2  
25MHz  
XTAL_IN  
1
0
0
1
nQ2  
OSC  
÷5  
XTAL_OUT  
Q3  
Phase  
Detector  
VCO  
490-680MHz  
nQ3  
Pulldown  
REF_CLK  
Q4  
Q5  
Q6  
Q7  
Pulldown  
nXTAL_SEL  
÷25  
The Preliminary Information presented herein represents a product in pre-production.The noted characteristics are based on initial product characterization  
and/or qualification.Integrated DeviceTechnology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.  
IDT/ ICSLVDS/LVCMOS FREQUENCY SYNTHESIZER  
1
ICS8440258AK-46 REV B JANUARY 15, 2008  

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FEMTOCLOCKS? CRYSTAL-TO- LVDS CLOCK GENERATOR