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Special NotePre-programming of customer-specific settings is available. Contact your local Texas Instruments sales representative or local authorized distributor for more information.
Customers Who Evaluated This Product Also Evaluated
Product InformationFeatures
Description
The CDCE925 and CDCEL925 are modular PLL-based low-cost, high-performance, programmable clock synthesizers, multipliers, and dividers. They generate up to five 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 two independent configurable PLLs. The CDCx925 has separate output supply pins, VDDOUT, which is 1.8 V for CDCEL925 and 2.5 V to 3.3 V for CDCE925. The input accepts an external crystal or LVCMOS clock signal. In case of a crystal input, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 pF 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. 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 27 MHz reference input frequency, for example. All PLLs supports SSC (spread-spectrum clocking). SSC can be center-spread or down-spread clocking which 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 optimized jitter transfer characteristic of each PLL. The device supports nonvolatile EEPROM programming for easy customization of the device in the application. It is preset to a factory default configuration and can be re-programmed to a different application configuration before it goes onto the PCB or re-programmed by in-system programming. All device settings are programmable through SDA/SCL bus, a 2-wire serial interface. Three, free programmable control inputs, S0, S1, and S2, can be used to select different frequencies, or change SSC setting for lowering EMI, or other control features like outputs disable to low, outputs 3-state, power down, PLL bypass, etc.). The CDCx925 operates in a 1.8 V environment. It operates in a temperature range of –40 °C to 85 °C. |
| Price | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| CDCE925PW | ACTIVE | -40 to 85 | 2.15 | 1ku | TSSOP (PW) | 16 | View | 90 | TUBE | |||
| CDCE925PWG4 | ACTIVE | -40 to 85 | 2.15 | 1ku | TSSOP (PW) | 16 | View | 90 | TUBE | |||
| CDCE925PWR | ACTIVE | -40 to 85 | 1.95 | 1ku | TSSOP (PW) | 16 | View | 2000 | LARGE T&R | Purchase Samples | ||
| CDCE925PWRG4 | ACTIVE | -40 to 85 | 1.95 | 1ku | TSSOP (PW) | 16 | 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.
| Reported Distributor Inventory as of 11:55 AM GMT, 08 Nov 2009 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 20 WeeksCDCE925PW | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksCDCE925PWG4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksCDCE925PWR | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksCDCE925PWRG4 | |||
| None Reported View 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| CDCE925PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| CDCE925PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| CDCE925PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| CDCE925PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
* 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.
Most useful technical documents for CDCE925 
| Name | Part # | Company | Tool / Software Type |
| CDCE(L)949 Family EEPROM Programming Board | CDCEL9XXPROGEVM | Texas Instruments | Development Boards/EVMs |
| CDCE925 Performance Evaluation Module | CDCE925PERF-EVM | Texas Instruments | Development Boards/EVMs |
| ClockPro(TM) Programming Software | CLOCKPRO | Texas Instruments | Application Software |
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