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CDCS502

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具有可选 SSC 的晶体振荡器/时钟发生器

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数据表

CDCS502

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数据表 立即订购

产品详情

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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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 Crystal Oscillator / Clock Generator with optional SSC 数据表 2008-12-19
应用手册 Spread Spectrum Clocking Using the CDCS502/503 2009-8-19

设计与开发

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评估板

CDCS502PERF-EVM — CDCS502 性能评估模块

CDCS502 是可扩频的基本模式晶振，具有可选倍频。晶振频率由 PLL 处理，其输出频率等于输入频率或乘以系数 4。PLL 还可通过三角调制将时钟信号以输出时钟频率为中心扩展 +/-0%、+/-0.5%、+/-1% 或 +/-2%。此评估模块 (EVM) 旨在演示 CDCS502 的电性能。这个完全组装且经过工厂测试的评估板允许对器件的所有功能进行全面验证。
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