TI Home > Semiconductors > Clocks and Timers > Clock Generation > General Purpose Synthesizer with optional SSC > VCXO Input >

CDCE949 Status: ACTIVE

Programmable 4-PLL VCXO Clock Synthesizer with 2.5V or 3.3V LVCMOS Outputs


      
         
Alert me about changes<br/>to this product


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 CDCE949CDCEL913 CDCEL925 CDCEL937 CDCEL949 
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  
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  
Multiplier RatioUniversal Ratio  Universal Ratio  Universal Ratio  Universal Ratio  Uiversal Ratio  Universal Ratio  Universal Ratio  Universal Ratio  
No. of Outputs3  5  7  9  3  5  7  9  
Pin/Package14TSSOP  16TSSOP  20TSSOP  24TSSOP  14TSSOP  16TSSOP  20TSSOP  24TSSOP  
Output Frequency(Max)(Mhz)230  230  230  230  230  230  230  230  
Output LevelLVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  LVCMOS  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  
Output Skew(ps)150  150  150  150  150  150  150  150  
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  
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  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • CDCE913: Programmable 1-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs
  • CDCE925: Programmable 2-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs
  • CDCE937: Programmable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs
  • CDCE906: Programmable 3-PLL Clock Synthesizer / Multiplier / Divider
  • CDCE706: Programmable 3-PLL Clock Synthesizer / Multiplier / Divider
  • CDCE62002: Four Output Clock Generator/Jitter Cleaner with Integrated Dual VCOs

Product Information

Features

  • Member of Programmable Clock Generator Family
    • CDCE913/CDCEL913: 1 PLLs, 3 Outputs
    • CDCE925/CDCEL925: 2 PLLs, 5 Outputs
    • CDCE937/CDCEL937: 3 PLLs, 7 Outputs
    • CDCE949/CDCEL949: 4 PLLs, 9 Outputs
  • In-System Programmability and EEPROM
    • Serial Programmable Volatile Register
    • Non-Volatile EEPROM to Store Customer Settings
  • Highly Flexible Clock Driver
    • Three User-Definable Control Inputs [S0/S1/S2] e.g. SSC-Selection, Frequency Switching, Output Enable or Power Down
    • Generates Highly-Accurate Clocks for Video, Audio, USB, IEEE1394, RFID, Generates Common Clock Frequencies Used with TI DaVinci, OMAP, DSPs
    • BlueTooth, WLAN, Ethernet and GPS
    • Programmable SSC Modulation
    • Enables 0-PPM Clock Generation
  • Selectable Output Frequency up to 230 MHz
  • Flexible Input Clocking Concept
    • External Crystal: 8 to 32 MHz
    • On-Chip VCXO: Pull-Range ±150 ppm
    • Single-Ended LVCMOS up to 160 MHz
  • Low-Noise PLL Core
    • Integrated PLL Loop Filter Components
    • Very Low Period Jitter (typ 60 ps)
  • Separate Output Supply Pins
    • CDCE949: 3.3 V and 2.5 V
    • CDCEL949: 1.8 V
  • 1.8 V Device Power Supply
  • Wide Temperature Range –40° C to 85° C
  • Packaged in TSSOP
  • Development and Programming Kit for Ease PLL Design and Programming (TI-Pro Clock)
  • APPLICATIONS
    • D-TV, HD-TV, STB, IP-STB, DVD-Player, DVD-Recorder, Printer
    • General Purpose Frequency Synthesizing

All trademarks are the property of their respective owners.

Description

The CDCE949 and CDCEL949 are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. They generate up to 9 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 four independent configurable PLLs.

The CDCx949 has separate output supply pins, VDDOUT, 1.8 V for the CDCEL949, and 2.5 V to 3.3 V for CDCE949.

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, allowing synchronization of the output frequency to an external control signal, that is, a PWM signal.

The deep M/N divider ratio allows the generation of zero-ppm audio/video, networking (WLAN, BlueTooth™, Ethernet, GPS) or Interface (USB, IEEE1394, Memory Stick) clocks from a reference input frequency, such as 27 MHz.

All PLLs support SSC (Spread-Spectrum Clocking). SSC can be Center-Spread or Down-Spread clocking. This is a common technique to reduce electro-magnetic interference (EMI).

Based on the PLL frequency and the divider settings, the internal loop-filter components are automatically adjusted to achieve high stability, and to optimize the jitter-transfer characteristics of each PLL.

The device supports non-volatile EEPROM programming for easy customization of the device to the application. It is preset to a factory-default configuration. It can be reprogrammed to a different application configuration before PCB assembly, or reprogrammed by in-system programming. All device settings are programmable through the SDA/SCL bus, a 2-wire serial interface.

Three programmable control inputs, S0, S1 and S2, can be used to control various aspects of operation including frequency selection, changing the SSC parameters to lower EMI, PLL bypass, power down, and choosing between low level or 3-state for the output-disable function.

The CDCx949 operates in a 1.8 V environment. It operates within a temprateure range of –40° C to 85° C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
CDCE949PWACTIVE-40 to 852.60 | 1kuTSSOP (PW) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
CDCE949PWG4ACTIVE-40 to 852.60 | 1kuTSSOP (PW) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
CDCE949PWRACTIVE-40 to 852.35 | 1kuTSSOP (PW) | 24 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
CDCE949PWRG4ACTIVE-40 to 852.35 | 1kuTSSOP (PW) | 24 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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 12:02 PM GMT, 05 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksCDCE949PW
AmericasArrow 100
Avnet 213
Newark 121
AsiaFarnell Asia 121
TI Lead Time*: 20 WeeksCDCE949PWG4
AsiaFarnell Asia 85
EuropeFarnell 85
TI Lead Time*: 20 WeeksCDCE949PWR
None Reported
View Distributors
TI Lead Time*: 20 WeeksCDCE949PWRG4
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
CDCE949PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
CDCE949PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
CDCE949PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
CDCE949PWRG4 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 CDCE949 Help

Datasheet

Application Notes

User Guides

Tools & Software

NamePart # Company Tool / Software Type
CDCE(L)949 Family EEPROM Programming BoardCDCEL9XXPROGEVMTexas InstrumentsDevelopment Boards/EVMs
CDCE949 Performance Evaluation ModuleCDCE949PERF-EVMTexas InstrumentsDevelopment Boards/EVMs
ClockPro(TM) Programming SoftwareCLOCKPRO Texas Instruments Application Software 

Simulation Models

Part # Name Product Family Comments
TVP5147   10-bit High Quality Single-Chip Digital Video Decoder That Digitizes And Decodes NTSC/PAL/SECAM   VIDEO AND IMAGING - VIDEO ENCODERS / DECODERS      
TAS3204   High Performance Dual Core DSP/MCU Audio Processor   DIGITAL AUDIO PROCESSORS - AUDIO PROCESSORS      
SN65LV1023A   10:1 LVDS Serdes Transmitter 100 - 660Mbps   SERIALIZERS AND DESERIALIZERS - LVDS SERDES (<100 MHZ)      
TMS320DM355   Digital Media System-on-Chip (DMSoC)   DAVINCI VIDEO PROCESSORS - TMS320DM3x ARM9™ Based SOCs      
TLV320AIC3104   Low-Power Stereo CODEC with 6 Inputs, 6 Outputs, HP Amp and Enhanced Digital Effects   AUDIO CONVERTERS AND CODECS - AUDIO CODEC      
ADS62P25   Dual 12-bit 125MSPS ADC with selectable DDR LVDS or CMOS outputs   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTERS      
ADS5272   8-Channel 65 MSPS Analog to Digital Converter   DATA CONVERTERS - ANALOG TO DIGITAL CONVERTERS      
DAC5672   14 bit 275 MSPS Dual Digital to Analog Converter   DATA CONVERTERS - DIGITAL TO ANALOG CONVERTERS      
TMS320C6452   Digital Signal Processor   TMS320C6000 DSP PLATFORM - TMS320C645x DSPs      
Customers Who Evaluated This Product Also Evaluated...
CDCE913 Programmable 1-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs General Purpose Synthesizer with optional SSC-VCXO INPUT TI customers also evaluated this product.
CDCE925 Programmable 2-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs General Purpose Synthesizer with optional SSC-VCXO INPUT TI customers also evaluated this product.
CDCE937 Programmable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs General Purpose Synthesizer with optional SSC-VCXO INPUT TI customers also evaluated this product.
CDCE906 Programmable 3-PLL Clock Synthesizer / Multiplier / Divider General Purpose Synthesizer with optional SSC-NON-VCXO INPUT TI customers also evaluated this product.
CDCE706 Programmable 3-PLL Clock Synthesizer / Multiplier / Divider General Purpose Synthesizer with optional SSC-NON-VCXO INPUT TI customers also evaluated this product.
CDCE62002 Four Output Clock Generator/Jitter Cleaner with Integrated Dual VCOs ULTRA LOW JITTER SYNTHESIZER AND JITTER CLEANER-INTERNAL VCO OUTPUT TI customers also evaluated this product.
CDCE62005 5/10 Outputs Clock Generator/Jitter Cleaner with Integrated Dual VCO ULTRA LOW JITTER SYNTHESIZER AND JITTER CLEANER-INTERNAL VCO OUTPUT TI customers also evaluated this product.
CDCM61004 1:4 Ultra Low Jitter Crystal-In Clock Generator ULTRA LOW JITTER SYNTHESIZER AND JITTER CLEANER-INTERNAL VCO OUTPUT TI customers also evaluated this product.
CDCS502 Crystal Oscillator / Clock Generator with optional SSC General Purpose Synthesizer with optional SSC-NON-VCXO INPUT TI customers also evaluated this product.
CDCM61001 1:1 Ultra Low Jitter Crystal-In Clock Generator ULTRA LOW JITTER SYNTHESIZER AND JITTER CLEANER-INTERNAL VCO OUTPUT TI customers also evaluated this product.
TPA2005D1 1.4-W Mono Class-D Audio Amplifier (TPA2005) DIGITAL AMPLIFIER SOLUTIONS-ANALOG-INPUT CLASS-D SPEAKER AMPLIFIERS TI customers also evaluated this product.
TPS54386 Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
CDCE421A Fully Integrated Wide Range Low-Jitter Crystal Oscillator Clock Generator ULTRA LOW JITTER SYNTHESIZER AND JITTER CLEANER-INTERNAL VCO OUTPUT TI customers also evaluated this product.

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here