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CDCS502

AKTIV

Quarzoszillator/Taktgeber mit optionalem SSC

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Datenblatt

CDCS502

AKTIV
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Produktdetails

Function Spread-spectrum clock generator Number of outputs 1 Output frequency (max) (MHz) 108 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type XTAL Output type LVCMOS Operating temperature range (°C) -40 to 85 Features Multiplier or divider, Pin programmable, Spread-spectrum clocking (SSC) Rating Catalog
Function Spread-spectrum clock generator Number of outputs 1 Output frequency (max) (MHz) 108 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type XTAL Output type LVCMOS 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 x 6.4
  • 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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CDCE913 AKTIV Programmierbarer VCXO-Taktsynthesizer mit 1 PLL sowie mit LVCMOS-Ausgängen für 2,5 oder 3,3 Volt CDCS502 is a clock buffer with SSC. CDCE913 has similar functionality but provides frequency synthesis with 3 fan outs and integrated EEPROM
CDCEL913 AKTIV Programmierbarer 1-PLL VCXO-Taktsynthesizer mit 1,8-V-LVCMOS-Ausgängen 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.

Technische Dokumentation

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Typ Titel Datum
* Data sheet Crystal Oscillator / Clock Generator with optional SSC datasheet 19 Dez 2008
Application note Spread Spectrum Clocking Using the CDCS502/503 19 Aug 2009
User guide CDCS502 Performance Evaluation Module 05 Mai 2009

Design und Entwicklung

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