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CDCEL937 Status: ACTIVE

Programmable 3-PLL VCXO Clock Synthesizer with 1.8-V LVCMOS Outputs


      
         
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Special Note

Pre-programming of customer-specific settings is available. Contact your local Texas Instruments sales representative or local authorized distributor for more information.

 CDCE913 CDCE925 CDCE937 CDCE949 CDCEL913 CDCEL925 CDCEL937CDCEL949 
Approx. Price (US$) 1.60 | 1ku   1.95 | 1ku   2.15 | 1ku   2.35 | 1ku   1.60 | 1ku   1.80 | 1ku   2.15 | 1ku   2.35 | 1ku  
Divider RatioUniversal Ratio  Universal Ratio  Universal Ratio  Universal Ratio  Universal ratio  Universal Ratio  Universal Ratio  Universal Ratio  
Input LevelCrystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  Crystal, LVCMOS  
IO Supply (Volts)2.5 to 3.3  2.5 to 3.3  2.5 to 3.3  2.5 to 3.3  1.8  1.8  1.8  1.8  
Jitter-Peak to Peak(P-P) or Cycle to Cycle(C-C)60 ps  60 ps  60 ps  60 ps  60 ps  60 ps  60 ps  60 ps  
No. of Outputs3  5  7  9  3  5  7  9  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  -40 to 85  -40 to 85  -40 to 85  -40 to 85  
Output Frequency(Max)(Mhz)230  230  230  230  230  230  230  230  
Output LevelLVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  
Output Skew(ps)150  150  150  150  150  150  150  150  
Pin/Package14TSSOP  16TSSOP  20TSSOP  24TSSOP  14TSSOP  16TSSOP  20TSSOP  24TSSOP  
VCC(V)1.8,3.3  1.8,3.3  1.8,3.3  1.8,3.3  1.8  1.8  1.8  1.8  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • CDCE937: Programmable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs
  • CDCE913: Programmable 1-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs
  • CDCE949: Programmable 4-PLL VCXO Clock Synthesizer with 2.5V or 3.3V LVCMOS Outputs

    • Product Information

    Features

    • Member of Programmable Clock Generator Family
      • CDCE913/CDCEL913: 1-PLL, 3 Outputs
      • CDCE925/CDCEL925: 2-PLL, 5 Outputs
      • CDCE937/CDCEL937: 3-PLL, 7 Outputs
      • CDCE949/CDCEL949: 4-PLL, 9 Outputs
    • In-System Programmability and EEPROM
      • Serial Programmable Volatile Register
      • Nonvolatile EEPROM to Store Customer Setting
    • Flexible Input Clocking Concept
      • External Crystal: 8 MHz to 32 MHz
      • On-Chip VCXO: Pull Range ±150 ppm
      • Single-Ended LVCMOS up to 160 MHz
    • Selectable Output Frequency up to 230  MHz
    • Low-Noise PLL Core
      • Integrated PLL Loop Filter Components
      • Low Period Jitter (Typ 60 ps)
    • Separate Output Supply Pins
      • CDCE937: 3.3 V and 2.5 V
      • CDCEL937: 1.8 V
    • 1.8-V Device Power Supply

    View All Features in Datasheet

    Description

    The CDCE937 and CDCEL937 are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. They generate up to 7 output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230 MHz, using up to three independent configurable PLLs.

    The CDCx937 has separate output supply pins, VDDOUT, which is 1.8 V for CDCEL937 and to 2.5 V to 3.3 V for CDCE937.

    The input accepts an external crystal or LVCMOS clock signal. If an external crystal is used, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 to 20 pF. Additionally, an on-chip VCXO is selectable which allows synchronization of the output frequency to an external control signal, that is, PWM signal.

    View All Description in Datasheet

    		    

    Pricing / Packaging / CAD Design Tools / Samples

    PricePackagingCAD Design ToolsSamples
    DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
    CDCEL937PWACTIVE-40 to 852.35 | 1kuTSSOP (PW) | 20 View 70 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
    CDCEL937PWG4ACTIVE-40 to 852.35 | 1kuTSSOP (PW) | 20 View 70 | TUBE  
    CDCEL937PWRACTIVE-40 to 852.15 | 1kuTSSOP (PW) | 20 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
    CDCEL937PWRG4ACTIVE-40 to 852.15 | 1kuTSSOP (PW) | 20 View 2000 | LARGE T&R  Purchase Samples

    * 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 12:03 PM GMT, 20 Nov 2009
    RegionCompanyIn StockPurchase
    TI Lead Time*: 20 WeeksCDCEL937PW
    AmericasAvnet 420
    Newark 136
    Rochester Electronics 605
    AsiaFarnell Asia 136
    WPI 94
    EuropeAvnet-SILICA 49
    WorldwideMouser Electronics 123
    TI Lead Time*: 20 WeeksCDCEL937PWG4
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksCDCEL937PWR
    None Reported
    View Distributors
    TI Lead Time*: 20 WeeksCDCEL937PWRG4
    None Reported
    View Distributors
    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
    CDCEL937PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CDCEL937PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CDCEL937PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
    CDCEL937PWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

    * 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 CDCEL937 Help

    Datasheet

    Application Notes

    User Guides

    Tools & Software

    NamePart # Company Tool / Software Type
    CDCE(L)949 Family EEPROM Programming BoardCDCEL9XXPROGEVMTexas InstrumentsDevelopment Boards/EVMs
    TMS320C6457 Evaluation ModuleTMDXEVM6457Texas InstrumentsDevelopment Boards/EVMs
    ClockPro(TM) Programming SoftwareCLOCKPRO Texas Instruments Application Software 

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    CDCE949 Programmable 4-PLL VCXO Clock Synthesizer with 2.5V or 3.3V LVCMOS Outputs General Purpose Synthesizer with optional SSC-VCXO INPUT TI customers also evaluated this product.
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