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DS3106
Line Card Timing IC

Low-Cost Line Card Timing IC


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 492kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The DS3106 is a low-cost timing IC for telecom line cards. The device accepts two reference clocks from dual redundant system timing cards, continually monitors both inputs, and performs manual reference switching if the primary reference fails. The highly programmable DS3106 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.

The DS3106 register set is backward compatible with Semtech's ACS8526 line card timing IC. The DS3106 pinout is similar but not identical to the ACS8526.

An evaluation kit is available:  DS3106DK  

Key Features   Applications/Uses
  • Advanced DPLL Technology
    • Programmable PLL Bandwidth: 18Hz to 400Hz
    • Manual Reference Switching
    • Holdover on Loss of All Input References
    • Frequency Conversion Among SONET/SDH, PDH, Ethernet, Wireless, and CMTS Rates
  • Two Input Clocks
    • CMOS/TTL Signal Format (≤ 125MHz)
    • 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
      • Custom Clock Rates: Any Multiple of 2kHz Up to 125MHz
  • Two Output Clocks
    • 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
      • Frame Sync: 2kHz, 8kHz
      • 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

 
  • SONET/SDH, Synchronous Ethernet, PDH, and Other Line Cards in WAN Equipment Including MSPPs, Ethernet Switches, Routers, DSLAMs, and Wireless Base Stations

Key Specifications:  Timing Card and Line Card ICs
Part Number Indep. DPLLs Input Clocks Diff. Input Clocks Output Clocks Diff. Output Clocks fCLKIN fCLKOUT DS1/E1/J1 Rcvrs. DS1/E1/J1 Xmtrs. DPLL BW
(Hz)
DPLL BW
(Hz)
Smallest Available Pckg.
(mm2)
Price
min max max w/pins See Notes
DS3106  1 2 0 2 1
2kHz and 4kHz
25.00MHz
125.00MHz
156.25MHz
312.5MHz
N x 19.44MHz
N x 2kHz up to 131.072MHz
N x 8kHz up to 155.52MHz
N x DS1
N x E1
2kHz
6.48MHz
8kHz
25.00MHz
51.84MHz
62.5MHz
125.00MHz
155.52MHz
156.25MHz
311.04MHz
312.5MHz
DS3
E3
N x 10kHz up to 388.79MHz
N x 19.44MHz
N x 2kHz up to 77.76MHz
N x 8kHz up to 311.04MHz
N x DS1
N x DS2
N x E1
0 0 18 400 148.8 $16.00 @1k
See All Timing Card and Line Card ICs (6)

Diagram
DS3106: Simplified Functional Diagram
Simplified Functional Diagram

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    Document Ref.: 19-4629; 2009-05-12
    This page last modified: 2009-05-12


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