Detalles del producto

Function Clock synthesizer Number of outputs 9 Output frequency (max) (MHz) 230 Core supply voltage (V) 1.8 Output supply voltage (V) 1.8 Input type XTAL Output type LVCMOS Operating temperature range (°C) -40 to 85 Features Integrated EEPROM, Multiplier or divider, Spread-spectrum clocking (SSC) Rating Catalog
Function Clock synthesizer Number of outputs 9 Output frequency (max) (MHz) 230 Core supply voltage (V) 1.8 Output supply voltage (V) 1.8 Input type XTAL Output type LVCMOS Operating temperature range (°C) -40 to 85 Features Integrated EEPROM, Multiplier or divider, Spread-spectrum clocking (SSC) Rating Catalog
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • Member of programmable clock generator family
    • CDCEx913: 1 PLLs, 3 outputs
    • CDCEx925: 2 PLLs, 5 outputs
    • CDCEx937: 3 PLLs, 7 outputs
    • CDCEx949: 4 PLLs, 9 outputs
  • In-System programmability and EEPROM
    • Serial programmable volatile register
    • Nonvolatile EEPROM to store customer settings
  • Flexible input clocking concept
    • External crystal: 8MHz to 32MHz
    • On-chip VCXO pull-range: ±150ppm
    • Single-ended LVCMOS up to 160MHz
  • Free selectable output frequency up to 230MHz
  • Low-noise PLL core
    • PLL loop filter components integrated
    • Low period jitter: 60ps (typical)
  • Separate output supply pins
    • CDCE949: 3.3V and 2.5V
    • CDCEL949: 1.8V
  • Flexible clock driver
    • Three user-definable control inputs [S0/S1/S2] (for example: SSC selection, frequency switching, output enable or power down)
    • Generates highly accurate clocks for video, audio, USB, IEEE1394, RFID, Bluetooth, WLAN, Ethernet™, and GPS
    • Generates common clock frequencies used with TI-DaVinci™, OMAP™, DSPs
    • Programmable SSC modulation
    • Enables 0ppm clock generation
  • 1.8V device core supply
  • Wide temperature range: –40°C to 85°C
  • Packaged in TSSOP
  • Development and programming kit for easy PLL design and programming (TI Pro-Clock™)
  • Member of programmable clock generator family
    • CDCEx913: 1 PLLs, 3 outputs
    • CDCEx925: 2 PLLs, 5 outputs
    • CDCEx937: 3 PLLs, 7 outputs
    • CDCEx949: 4 PLLs, 9 outputs
  • In-System programmability and EEPROM
    • Serial programmable volatile register
    • Nonvolatile EEPROM to store customer settings
  • Flexible input clocking concept
    • External crystal: 8MHz to 32MHz
    • On-chip VCXO pull-range: ±150ppm
    • Single-ended LVCMOS up to 160MHz
  • Free selectable output frequency up to 230MHz
  • Low-noise PLL core
    • PLL loop filter components integrated
    • Low period jitter: 60ps (typical)
  • Separate output supply pins
    • CDCE949: 3.3V and 2.5V
    • CDCEL949: 1.8V
  • Flexible clock driver
    • Three user-definable control inputs [S0/S1/S2] (for example: SSC selection, frequency switching, output enable or power down)
    • Generates highly accurate clocks for video, audio, USB, IEEE1394, RFID, Bluetooth, WLAN, Ethernet™, and GPS
    • Generates common clock frequencies used with TI-DaVinci™, OMAP™, DSPs
    • Programmable SSC modulation
    • Enables 0ppm clock generation
  • 1.8V device core supply
  • Wide temperature range: –40°C to 85°C
  • Packaged in TSSOP
  • Development and programming kit for easy PLL design and programming (TI Pro-Clock™)

The CDCE949 and CDCEL949 are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. These devices generate up to nine output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230MHz, using up to four independent configurable PLLs.

The CDCEx949 has separate output supply pins (VDDOUT): 1.8V for the CDCEL949 and 2.5V to 3.3V for the 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 0pF to 20pF. 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 0ppm audio or video, networking (WLAN, BlueTooth™, Ethernet, GPS) or Interface (USB, IEEE1394, Memory Stick) clocks from a reference input frequency, such as 27MHz.

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. The CDCEx949 is preset to a factory-default configuration. The device 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 and 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 CDCEx949 operates in a 1.8V environment within a temperature range of –40°C to 85°C.

The CDCE949 and CDCEL949 are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers. These devices generate up to nine output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230MHz, using up to four independent configurable PLLs.

The CDCEx949 has separate output supply pins (VDDOUT): 1.8V for the CDCEL949 and 2.5V to 3.3V for the 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 0pF to 20pF. 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 0ppm audio or video, networking (WLAN, BlueTooth™, Ethernet, GPS) or Interface (USB, IEEE1394, Memory Stick) clocks from a reference input frequency, such as 27MHz.

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. The CDCEx949 is preset to a factory-default configuration. The device 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 and 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 CDCEx949 operates in a 1.8V environment within a temperature range of –40°C to 85°C.

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Documentación técnica

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Tipo Título Fecha
* Data sheet CDCE(L)949: Flexible Low Power LVCMOS Clock Generator With SSC Support for EMI Reduction datasheet (Rev. G) PDF | HTML 16 ene 2024
Application note VCXO Application Guideline for CDCE(L)9xx Family (Rev. A) 23 abr 2012
User guide CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual (Rev. A) 22 nov 2010
User guide CDCE(L)9xx Performance Evaluation Module (Rev. A) 07 jul 2010
Application note Troubleshooting I2C Bus Protocol 19 oct 2009
Application note Usage of I2C for CDCE(L)949, CDCE(L)937, CDCE(L)925, CDCE(L)913 23 sep 2009
User guide CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual 09 dic 2008
Application note Generating Low Phase-Noise Clocks for Audio Data Converters from Low Frequency 31 mar 2008
Application note Practical consideration on choosing a crystal for CDCE(L)9xx family 24 mar 2008

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

CDCEL949PERF-EVM — Módulo de evaluación del rendimiento de CDCEL949

The CDCEL949PERF-EVM will help to verify the functionality and performance of CDCEL949 with the options of crystal and 1.8 V LVCMOS inputs. The outputs can be connected to the Oscilloscope directly with SMA cables. The below information/items are included: The EVM use's guide : SCAU022; the (...)

Guía del usuario: PDF
Placa de evaluación

CDCEL9XXPROGEVM — Placa de programación EEPROM de la familia CDCE(L)949

The clock generator CDCE(L)949 family has integrated EEPROM that allows the default frequency settings to be saved upon start up. CDCEL9XXPROGEVM is a programming board that allows a fast programming of prototyping samples or small production quantities. It applies to all 8 devices in the family: (...)

Guía del usuario: PDF
Controlador o biblioteca

SCAC131 Drivers for the CDCEL9xx programmer EVM

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Generadores de señal de reloj
CDCE913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCEL913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 1,8 V. CDCEL925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 1,8 V. CDCEL937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 1,8 V. CDCEL949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 1,8 V.
Desarrollo de hardware
Placa de evaluación
CDCE906-706PROGEVM EVM programable CDCE906 y CDCE706 CDCE925PERF-EVM Módulo de evaluación del rendimiento de CDCE925 CDCE949PERF-EVM Módulo de evaluación del rendimiento de CDCE949 CDCEL913PERF-EVM Módulo de evaluación del rendimiento de CDCEL913 CDCEL925PERF-EVM Módulo de evaluación del rendimiento de CDCEL925 CDCEL949PERF-EVM Módulo de evaluación del rendimiento de CDCEL949
Soporte de software

CLOCKPRO ClockPro Software

TI's ClockPro software allows users to program/configure the following devices in a friendly GUI interface:

  • CDCE949
  • CDCE937
  • CDCE925
  • CDCE913
  • CDCE906
  • CDCE706
  • CDCEL949
  • CDCEL937
  • CDCEL925
  • CDCEL913

It is intended to be used with the evaluation modules of the above devices.

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Generadores de señal de reloj
CDCE706 Sintetizador de reloj, multiplicador y divisor de 3 PLL, 300 Mhz, con LVCMOS, programable CDCE906 Sintetizador de reloj, multiplicador y divisor de 3 PLL, 167 Mhz, con LVCMOS, programable CDCE913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCEL913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 1,8 V. CDCEL925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 1,8 V. CDCEL937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 1,8 V. CDCEL949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 1,8 V.
Desarrollo de hardware
Placa de evaluación
CDCE906-706PROGEVM EVM programable CDCE906 y CDCE706 CDCE913PERF-EVM Módulo de evaluación del rendimiento de CDCE913 CDCE925PERF-EVM Módulo de evaluación del rendimiento de CDCE925 CDCE949PERF-EVM Módulo de evaluación del rendimiento de CDCE949 CDCEL913PERF-EVM Módulo de evaluación del rendimiento de CDCEL913 CDCEL925PERF-EVM Módulo de evaluación del rendimiento de CDCEL925 CDCEL949PERF-EVM Módulo de evaluación del rendimiento de CDCEL949 CDCEL9XXPROGEVM Placa de programación EEPROM de la familia CDCE(L)949
Software
Herramienta de programación de software
CLOCKPRO ClockPro™ Software de programación
Soporte de software

SCAC073 TI-Pro-Clock Programming Software

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Generadores de señal de reloj
CDC706 sintetizador de reloj de 3 PLL, 200 Mhz, con LVCMOS, programado a medida, multiplicador y divisor CDC906 Sintetizador de reloj de 3 PLL, 167 Mhz, con LVCMOS, programado a medida, multiplicador y divisor CDCE706 Sintetizador de reloj, multiplicador y divisor de 3 PLL, 300 Mhz, con LVCMOS, programable CDCE906 Sintetizador de reloj, multiplicador y divisor de 3 PLL, 167 Mhz, con LVCMOS, programable CDCE913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCE949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCEL913 Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 1,8 V. CDCEL925 Sintetizador de reloj VCXO programable de 2 PLL con salidas LVCMOS de 1,8 V. CDCEL937 Sintetizador de reloj VCXO programable de 3 PLL con salidas LVCMOS de 1,8 V. CDCEL949 Sintetizador de reloj VCXO programable de 4 PLL con salidas LVCMOS de 1,8 V.
Herramienta de diseño

CLOCK-TREE-ARCHITECT — Software de programación de diseño de árbol de reloj

Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Paquete Pasadores Descargar
TSSOP (PW) 24 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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