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Generadores de señal de reloj

CDCS502

ACTIVO

Oscilador de cristal / generador de reloj con SSC opcional

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CDCS502

ACTIVO
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Detalles del producto

Number of outputs 1 Output type LVCMOS Output frequency (max) (MHz) 108 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type XTAL Operating temperature range (°C) -40 to 85 Features Multiplier or divider, Pin programmable, Spread-spectrum clocking (SSC) Rating Catalog
Number of outputs 1 Output type LVCMOS Output frequency (max) (MHz) 108 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type XTAL Operating temperature range (°C) -40 to 85 Features Multiplier or divider, Pin programmable, Spread-spectrum clocking (SSC) Rating Catalog
TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm)
  • Part of a Family of Easy to use Clock Generator Devices With Optional SSC
  • Crystal Oscillator With Integrated Crystal Capacitors, Selectable Output Frequency and Selectable SSC
  • SSC Controllable via 2 External Pins
    • ±0%, ±0.5%, ±1%, ±2% Center Spread
  • Frequency Multiplication Selectable Between x1 or x4 With one External Control Pin
  • Single 3.3V Device Power Supply
  • Wide Temperature Range -40°C to 85°C
  • Low space Consumption by 8 pin TSSOP Package
  • APPLICATIONS
    • Consumer and Industrial Applications requiring Crystal Oscillator with the possibility of EMI reduction through Spread Spectrum Clocking
  • Part of a Family of Easy to use Clock Generator Devices With Optional SSC
  • Crystal Oscillator With Integrated Crystal Capacitors, Selectable Output Frequency and Selectable SSC
  • SSC Controllable via 2 External Pins
    • ±0%, ±0.5%, ±1%, ±2% Center Spread
  • Frequency Multiplication Selectable Between x1 or x4 With one External Control Pin
  • Single 3.3V Device Power Supply
  • Wide Temperature Range -40°C to 85°C
  • Low space Consumption by 8 pin TSSOP Package
  • APPLICATIONS
    • Consumer and Industrial Applications requiring Crystal Oscillator with the possibility of EMI reduction through Spread Spectrum Clocking

The CDCS502 is a spread spectrum capable, fundamental mode crystal oscillator with selectable frequency multiplication.

It features an advanced gain controlled fundamental mode crystal oscillator stage with a built-in load capacitance of 10pF. This oscillator stage accepts crystals from 8MHz to 32MHz with an ESR of up to 180Ω. The stage can be used with crystals with power dissipation of 50µW and up.

The input signal is processed by a PLL, whose output frequency is either equal to the input frequency or multiplied by the factor of 4.

The PLL is also able to spread the clock signal by ±0%, ±0.5%, ±1% or ±2% centered around the output clock frequency with an triangular modulation.

By this, the device can generate output frequencies between 8MHz and 108MHz with or without SSC from a fundamental mode crystal.

In x1 Mode with an SSC amount of 0%, the device works as a standard crystal oscillator and does not make use of the built in PLL.

The CDCS502 operates in 3.3V environment.

It is characterized for operation from -40°C to 85°C. It is offered in an 8 Pin TSSOP package.

The CDCS502 is a spread spectrum capable, fundamental mode crystal oscillator with selectable frequency multiplication.

It features an advanced gain controlled fundamental mode crystal oscillator stage with a built-in load capacitance of 10pF. This oscillator stage accepts crystals from 8MHz to 32MHz with an ESR of up to 180Ω. The stage can be used with crystals with power dissipation of 50µW and up.

The input signal is processed by a PLL, whose output frequency is either equal to the input frequency or multiplied by the factor of 4.

The PLL is also able to spread the clock signal by ±0%, ±0.5%, ±1% or ±2% centered around the output clock frequency with an triangular modulation.

By this, the device can generate output frequencies between 8MHz and 108MHz with or without SSC from a fundamental mode crystal.

In x1 Mode with an SSC amount of 0%, the device works as a standard crystal oscillator and does not make use of the built in PLL.

The CDCS502 operates in 3.3V environment.

It is characterized for operation from -40°C to 85°C. It is offered in an 8 Pin TSSOP package.
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CDCEL913 ACTIVO Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 1,8 V. CDCS502 is a clock buffer with SSC. CDCEL913 has similar functionality but provides frequency synthesis with 3 fan outs and integrated EEPROM working at 1.8V.
CDCE913 ACTIVO Sintetizador de reloj VCXO programable de 1 PLL con salidas LVCMOS de 2,5 V o 3,3 V. CDCS502 is a clock buffer with SSC. CDCE913 has similar functionality but provides frequency synthesis with 3 fan outs and integrated EEPROM

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos Crystal Oscillator / Clock Generator with optional SSC datasheet 19/12/2008
Nota sobre la aplicación Spread Spectrum Clocking Using the CDCS502/503 19/08/2009

Diseño y desarrollo

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Placa de evaluación

CDCS502PERF-EVM — Módulo de evaluación del rendimiento de CDCS502

The CDCS502 is a spread spectrum capable, fundamental mode crystal oscillator with electable frequency multiplication. The crystal frequency is processed by a PLL, whose output frequency is either equal to the input frequency or multiplied by a factor of 4. The PLL is also able to spread the (...)
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