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DS3105LN2

更新时间： 2024-10-02 14:49:39
品牌 Logo 应用领域
美高森美 - MICROSEMI ATM异步传输模式
页数 文件大小 规格书
124页 1338K
描述
ATM/SONET/SDH IC,

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中文翻译

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DS3105LN2 技术参数

是否Rohs认证： 符合生命周期：Active
Reach Compliance Code：unknown风险等级：5.8
Base Number Matches：1

DS3105LN2 数据手册

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Data Sheet  
April 2019  
DS3105  
Line Card Timing IC  
General Description  
Features  
Advanced DPLL Technology  
The DS3105 is a low-cost, feature-rich timing IC for  
telecom line cards. Typically, the device accepts two  
reference clocks from dual redundant system timing  
cards. The DS3105 continually monitors both inputs  
and performs automatic hitless reference switching if  
the primary reference fails. The highly programmable  
DS3105 supports numerous input and output  
frequencies including frequencies required for  
SONET/SDH, Synchronous Ethernet (1G, 10G, and  
100Mbps), wireless base stations, and CMTS  
systems. PLL bandwidths from 18Hz to 400Hz are  
supported, and a wide variety of PLL characteristics  
and device features can be configured to meet the  
needs of many different applications.  
Programmable PLL Bandwidth: 18Hz to 400Hz  
Hitless Reference Switching, Automatic or Manual  
Holdover on Loss of All Input References  
Frequency Conversion Among SONET/SDH,  
PDH, Ethernet, Wireless, and CMTS Rates  
Five Input Clocks  
Two CMOS/TTL Inputs (≤ 125MHz)  
Two LVDS/LVPECL/CMOS/TTL (≤ 156.25MHz)  
Backup Input (CMOS/TLL) in Case of Complete  
Loss of System Timing References  
Three Optional Frame-Sync Inputs (CMOS/TTL)  
Continuous Input Clock Quality Monitoring  
Numerous Input Clock Frequencies Supported  
Ethernet xMII: 2.5, 25, 125, 156.25MHz  
SONET/SDH: 6.48, N x 19.44, N x 51.84MHz  
PDH: N x DS1, N x E1, N x DS2, DS3, E3  
Frame Sync: 2kHz, 4kHz, 8kHz  
The DS3105 register set is backward compatible with  
Semtech’s ACS8525 line card timing IC. The DS3105  
pinout is similar but not identical to the ACS8525.  
Custom Clock Rates: Any Multiple of 2kHz Up to  
131.072MHz, Any Multiple of 8kHz Up to  
155.52MHz  
Applications  
Two Output Clocks  
SONET/SDH, Synchronous Ethernet, PDH, and  
Other Line Cards in WAN Equipment Including  
MSPPs, Ethernet Switches, Routers, DSLAMs,  
and Wireless Base Stations  
One CMOS/TTL Output (≤ 125MHz)  
One LVDS/LVPECL Output (≤ 312.50MHz)  
Two Optional Frame-Sync Outputs: 2kHz, 8kHz  
Numerous Output Clock Frequencies Supported  
Ethernet xMII: 2.5, 25, 125, 156.25, 312.5MHz  
SONET/SDH: 6.48, N x 19.44, N x 51.84MHz  
PDH: N x DS1, N x E1, N x DS2, DS3, E3  
Other: 10, 10.24, 13, 30.72MHz  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
DS3105LN2  
64 LQFP  
-40C to +85C  
Frame Sync: 2kHz, 8kHz  
Suffix 2 denotes a lead(Pb)-free/RoHS-compliant package.  
Custom Clock Rates: Any Multiple of 2kHz Up to  
77.76MHz, Any Multiple of 8kHz Up to  
311.04MHz, Any Multiple of 10kHz Up to  
388.79MHz  
General  
Suitable Line Card IC for Stratum 3/3E/4, SMC,  
SEC  
Internal Compensation for Master Clock Oscillator  
SPI™ Processor Interface  
1.8V Operation with 3.3V I/O (5V Tolerant)  
Industrial Operating Temperature Range  
1
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