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CDCU877 Status: ACTIVE

1.8V Phase-Lock Loop Clock Driver for DDR2 SDRAM Applications


      
         
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Datasheet

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 CDCU877
VCC(V)1.8  
Operating Frequency Range(Min)(MHz)10  
Operating Frequency Range(Max)(MHz)400  
Absolute Jitter (cycle-to-cycle)(ps)30  
t(phase error)(Min)(ps)-50  
t(phase error)(Max)(ps)50  
Input LevelSSTL-18  
No. of Outputs10  
Output Drive(mA)9  
tsk(o)(ns)0.035  
Output LevelSSTL-18  
Pin/Package40QFN, 52BGA MICROSTAR JUNIOR  
Static Current(mA)0.5  
Approx. Price (US$) 3.05 | 1ku  
Operating Temp Range(Celsius)-40 to 85  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • CDCU2A877: 1.8V Phase-Lock Loop Clock Driver with high output drive for DDR2 SDRAM Applications
  • CDCV304: General Purpose and PCI-X 1:4 Clock Buffer
  • CDCU877A: 1.8V Phase-Lock Loop Clock Driver for DDR2 SDRAM Applications

    • Product Information

    Features

    • 1.8-V Phase Lock Loop Clock Driver for Double Data Rate (DDR II) Applications
    • Spread Spectrum Clock Compatible
    • Operating Frequency: 10 MHz to 400 MHz
    • Low Current Consumption: <135 mA
    • Low Jitter (Cycle-Cycle): ±30 ps
    • Low Output Skew: 35 ps
    • Low Period Jitter: ±20 ps
    • Low Dynamic Phase Offset: ±15 ps
    • Low Static Phase Offset: ±50 ps
    • Distributes One Differential Clock Input toTen Differential Outputs
    • 52-Ball µBGA (MicroStar™ Junior BGA, 0,65-mm pitch) and 40-Pin MLF
    • External Feedback Pins (FBIN, FBIN) are Used to Synchronize the Outputs to the Input Clocks
    • Meets or Exceeds JESD82-8 PLL Standard for PC2-3200/4300
    • Fail-Safe Inputs

    MicroStar is a trademark of Texas Instruments.

    Description

    The CDCU877 is a high-performance, low-jitter, low-skew, zero-delay buffer that distributes a differential clock inputpair (CK, CK) to ten differential pairs of clock outputs (Yn, Yn) and to one differential pair of feedback clock outputs (FBOUT, FBOUT). The clock outputs are controlled by the input clocks (CK, CK), the feedback clocks (FBIN, FBIN), the LVCMOS control pins (OE, OS), and the analog power input (AVDD). When OE is low, the clock outputs, except FBOUT/FBOUT, are disabled while the internal PLL continues to maintain its locked-in frequency. OS (output select) is a program pin that must be tied to GND or VDD. When OS is high, OE functions as previously described. When OS and OE are both low, OE has no affect on Y7/Y7, they are free running.

    View All Description in Datasheet

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    CDCU877GQLRACTIVE-40 to 853.05 | 1kuBGA MICROSTAR JUNIOR (GQL) | 52 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
    CDCU877GQLTACTIVE-40 to 853.40 | 1kuBGA MICROSTAR JUNIOR (GQL) | 52 View 250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
    CDCU877RHARACTIVE-40 to 853.05 | 1kuQFN (RHA) | 40 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
    CDCU877RHARG4ACTIVE-40 to 853.05 | 1kuQFN (RHA) | 40 View 2500 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
    CDCU877RHATACTIVE-40 to 853.40 | 1kuQFN (RHA) | 40 View 250 | SMALL T&R Download CAD Format for this Symbol 
    CDCU877RHATG4ACTIVE-40 to 853.40 | 1kuQFN (RHA) | 40 View 250 | SMALL T&R Download CAD Format for this Symbol 
    CDCU877RTBRACTIVE-40 to 853.05 | 1kuQFN (RHA) | 40 View 2500 | LARGE T&R Download CAD Format for this Symbol 
    CDCU877RTBTACTIVE-40 to 853.40 | 1kuQFN (RTB) | 40 View 250 | SMALL T&R Download CAD Format for this Symbol 
    CDCU877ZQLRACTIVE-40 to 853.05 | 1kuBGA MICROSTAR JUNIOR (ZQL) | 52 View 1000 | LARGE T&R Download CAD Format for this Symbol 
    CDCU877ZQLTACTIVE-40 to 853.40 | 1kuBGA MICROSTAR JUNIOR (ZQL) | 52 View 250 | SMALL T&R Download CAD Format for this Symbol 

    * Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

    Inventory

    Reported Distributor Inventory as of 12:01 PM GMT, 22 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 6 WeeksCDCU877GQLR
    AmericasRochester Electronics >1k
    WorldwideDigiKey  Available
    TI Lead Time*: 6 WeeksCDCU877GQLT
    WorldwideDigiKey 760
    Mouser Electronics 250
    TI Lead Time*: 16 WeeksCDCU877RHAR
    AmericasRochester Electronics >1k
    WorldwideDigiKey  Available
    TI Lead Time*: 16 WeeksCDCU877RHARG4
    WorldwideDigiKey  Available
    TI Lead Time*: 16 WeeksCDCU877RHAT
    AsiaWPI 219
    EuropeAvnet-SILICA 234
    WorldwideDigiKey 318
    TI Lead Time*: 16 WeeksCDCU877RHATG4
    WorldwideDigiKey  Available
    TI Lead Time*: 16 WeeksCDCU877RTBR
    WorldwideDigiKey  Available
    TI Lead Time*: 16 WeeksCDCU877RTBT
    AmericasArrow 205
    AsiaWPI 204
    WorldwideDigiKey 244
    TI Lead Time*: 12 WeeksCDCU877ZQLR
    AmericasRochester Electronics >1k
    WorldwideDigiKey  Available
    TI Lead Time*: 20 WeeksCDCU877ZQLT
    AmericasRochester Electronics >1k
    WorldwideDigiKey 43
    View all Distributors  

    ** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

    Quality & Lead (Pb)-Free Data

     Product ContentDPPM / MTBF / FIT Rate
    DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
    CDCU877GQLR  TBD SNPB Level-2-235C-1 YEARViewView
    CDCU877GQLT  TBD SNPB Level-2-235C-1 YEARViewView
    CDCU877RHAR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    CDCU877RHARG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    CDCU877RHAT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    CDCU877RHATG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    CDCU877RTBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
    CDCU877RTBT  TBD CU SNPB Level-3-235C-168 HRViewView
    CDCU877ZQLR RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-2-260C-1 YEARViewView
    CDCU877ZQLT RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-2-260C-1 YEARViewView

    * The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

    If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

    Technical Documents

    Most useful technical documents for CDCU877 Help

    Datasheet

    Application Notes

    Simulation Models

    Customers Who Evaluated This Product Also Evaluated...
    Part # Name Product Family Comments
    CDCU2A877 1.8V Phase-Lock Loop Clock Driver with high output drive for DDR2 SDRAM Applications 0 DELAY PLL-DIFFERENTIAL ENDED TI customers also evaluated this product.
    CDCV304 General Purpose and PCI-X 1:4 Clock Buffer NON-PLL BUFFERS-SINGLE ENDED(NP) TI customers also evaluated this product.
    CDCU877A 1.8V Phase-Lock Loop Clock Driver for DDR2 SDRAM Applications 0 DELAY PLL-DIFFERENTIAL ENDED TI customers also evaluated this product.

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