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MK2049-34SILF PDF预览

MK2049-34SILF

更新时间: 2024-11-28 15:43:11
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
8页 146K
描述
Clock Generator, 77.76MHz, PDSO20, 0.300 INCH, SOIC-20

MK2049-34SILF 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:SOIC
包装说明:0.300 INCH, SOIC-20针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.82
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:12.8 mm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:77.76 MHz封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
主时钟/晶体标称频率:17.664 MHz认证状态:Not Qualified
座面最大高度:2.65 mm最大供电电压:3.45 V
最小供电电压:3.15 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: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

MK2049-34SILF 数据手册

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MK2049-34  
3.3 Volt Communications Clock VCXO PLL  
Description  
Features  
The MK2049-34 is a VCXO Phased Locked Loop (PLL)  
based clock synthesizer that accepts multiple input  
frequencies. With an 8 kHz clock input as a reference,  
the MK2049-34 generates T1, E1, T3, E3, ISDN, xDSL,  
and other communications frequencies. This allows for  
the generation of clocks frequency-locked and  
phase-locked to an 8 kHz backplane clock, simplifying  
clock synchronization in communications systems. The  
MK2409-34 can also accept a T1 or E1 input clock and  
provide the same output for loop timing. All outputs are  
frequency locked together and to the input.  
Packaged in 20-pin SOIC  
3.3 V + 5% operation  
Fixed I/O phase relationship on all selections  
Meets the TR62411, ETS300 011, and GR-1244  
specification for MTIE, Pull-in/Hold-in Range, Phase  
Transients, and Jitter Generation for Stratum 3, 4,  
and 4E  
Accepts multiple inputs: 8 kHz backplane clock, Loop  
Timing frequencies, or 10 to 36 MHz  
Locks to 8 kHz + 100 ppm (External mode)  
This part also has a jitter-attenuated Buffer capability.  
In this mode, the MK2049-34 is ideal for filtering jitter  
from 27 MHz video clocks or other clocks with high  
jitter.  
Buffer Mode allows jitter attenuation of 10 to 36 MHz  
input and x1/x0.5 or x2/x4 outputs  
Exact internal ratios enable zero ppm error  
Output clock rates include T1, E1, T3, E3, ISDN,  
xDSL, and the OC3 submultiples  
ICS can customize these devices for many other  
different frequencies.  
See also the MK2049-36 and MK2049-45  
Block Diagram  
EXTERNAL PULLABLE CRYSTAL  
(external loop filter)  
INPUT REFERENCE  
CLOCK  
(TYPICALLY 8KHZ)  
FREQUENCY  
MULTIPLYING  
VCXO-BASED  
PLL  
CLOCK OUTPUT  
PLL  
(MASTER CLOCK  
GENERATOR)  
2
CLOCK OUTPUT / 2  
8 KHZ (REGENERATED)  
4
FREQUENCY SELECT  
MDS 2049-34 F  
1
Revision 102203  
Integrated Circuit Systems, Inc. z 525 Race Street, San Jose, CA 95126 z tel (408) 297-1201 z www.icst.com  

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