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CDC421A250RGER

Texas Instruments 时钟/计时 - 时钟发生器，PLL，频率合成器
  • 封装：24-VFQFN 裸露焊盘
  • RoHS：无铅 / 符合限制有害物质指令(RoHS)规范要求
  • 包装方式：带卷 (TR)
  • 参考价格：$8.96

更新日期：2024-04-01

CDC421A250RGER

Texas Instruments 时钟/计时 - 时钟发生器，PLL，频率合成器

产品简介：250MHz 全集成式固定频率低抖动晶振时钟发生器

查看详情
  • 封装：24-VFQFN 裸露焊盘
  • RoHS：无铅 / 符合限制有害物质指令(RoHS)规范要求
  • 包装方式：带卷 (TR)
  • 参考价格：$8.96

CDC421A250RGER 供应商

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CDC421A250RGER 中文资料属性参数

  • 标准包装：3,000
  • 类别：集成电路 (IC)
  • 家庭：时钟/计时 - 时钟发生器，PLL，频率合成器
  • 系列：-
  • 类型：时钟发生器
  • PLL：是
  • 输入：LVCMOS，晶体
  • 输出：LVPECL
  • 电路数：1
  • 比率 - 输入:输出：1:1
  • 差分 - 输入:输出：无/是
  • 频率 - 最大：250MHz
  • 除法器/乘法器：是/无
  • 电源电压：3 V ~ 3.6 V
  • 工作温度：-40°C ~ 85°C
  • 安装类型：表面贴装
  • 封装/外壳：24-VFQFN 裸露焊盘
  • 供应商设备封装：24-VQFN 裸露焊盘（4x4）
  • 包装：带卷 (TR)

产品特性

  • Single 3.3-V Supply
  • High-Performance Clock Generator, Incorporating Crystal Oscillator Circuitry with Integrated Frequency Synthesizer
  • Low Output Jitter: As low as 380 fs (RMS integrated between 10 kHz to 20 MHz)
  • Low Phase Noise at 312.5 MHz: Less than -120 dBc/Hz at 10 kHz and -147 dBc/Hz at 10-MHz offset from carrier
  • Less than -120 dBc/Hz at 10 kHz and -147 dBc/Hz at 10-MHz offset from carrier
  • Supports Crystal or LVCMOS Input Frequencies at 31.25 MHz, 33.33 MHz, and 35.42 MHz
  • Output Frequencies: 100 MHz, 106.25 MHz, 125 MHz, 156.25 MHz, 212.5 MHz, 250 MHz, and 312.5 MHz
  • Differential Low-Voltage Positive Emitter Coupled Logic (LVPECL) Outputs
  • Fully-Integrated Voltage-Controlled Oscillator (VCO): Runs from 1.75 GHz to 2.35 GHz
  • Typical Power Consumption: 300 mW
  • Chip Enable Control Pin
  • Available in 4-mm × 4-mm QFN-24 Package
  • ESD Protection Exceeds 2 kV (HBM)
  • Industrial Temperature Range: -40°C to +85°C
  • APPLICATIONS Low-Cost, Low-Jitter Frequency Multiplier
  • Low-Cost, Low-Jitter Frequency Multiplier

产品概述

The CDC421Axxx is a high-performance, low-phase-noise clock generator. It has an integrated low-noise, LC-based voltage-controlled oscillator (VCO) that operates within the 1.75 GHz to 2.35 GHz frequency range. It has an integrated crystal oscillator that operates in conjunction with an external AT-cut crystal to produce a stable frequency reference for a phase-locked loop (PLL)-based frequency synthesizer. The output frequency (fOUT) is proportional to the frequency of the input crystal (fXTAL).The device operates in 3.3-V supply environment and is characterized for operation from -40°C to +85°C. The CDC421Axxx is available in a QFN-24 4-mm × 4-mm package.The CDC421Axxx differs from the CDC421xxx in the following ways:The CDC421Axxx has an improved startup circuit to enable correct operation for all power-supply ramp times.
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