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SIT9121

SiT9121支持1-220Mhz之间任意频点,相位抖动<1ps,可输出LVDS/LVPECL,频率稳定度高达±10ppm。SIT9121系列产品得到了以XiLinx 为代表的主流FPGA 供应商的普遍认同,成为通信、安防、工业控制、医疗健康等诸多领域的差分晶振的不二选择。

SIT9121支持业界标准管脚配置,不需修改设计或布板方式即可替换现有石英差分振荡器。

基于传统石英、SAW和泛音谐振技术的传统差分振荡器在稳定度和可靠度上先天不足,全新的SiT9121差分晶振采用SiTime模拟CMOS和全硅MEMS技术研发,结合了超高性能和可编程功能的产品。

选型参数
优势特点
参考设计
Resources
智能选型
Frequency Range (MHz) 1 to 220
Frequency Stability (PPM) ±10, ±20, ±25, ±50
RMS Integrated Phase Jitter (12kHz - 20MHz) 0.6 ps
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V)

2.5, 3.3, 2.25V to 3.63V continuous supply voltage

Package LxWxH (mm) 3.2 x 2.5 x 0.75, 5.0 x 3.2 x 0.75, 7.0 x 5.0 x 0.9
Status Production
Applications
  • SONET
  • Synchronous Ethernet
  • 10G Ethernet
  • Fiber Channel
  • PCI-Express
  • System Clocking
Features Benefits
  • 0.6 ps integrated RMS phase jitter (12 kHz to 20 MHz)
  • Excellent jitter margin for the most stringent applications such as SONET
  • Excellent frequency stability, as low as ±10 PPM
  • Better timing margin that enhances system stability and robustness
  • Extensive programmability
  • Frequency from 1 to 220 MHz
  • LVPECL and LVDS output signaling types
  • Supply voltage of 2.5V and 3.3V
  • Frequency stability from ±10 PPM to ±50 PPM
  • Customized specifications for optimal system performance
  • Easy availability of any device specification within the operating range
  • Three industry standard packages
  • 100% drop in replacement for quartz, SAW and overtone oscillators without any design changes
  • 3-5 weeks lead time
    • Any frequency
    • Any voltage
    • Any package
  • Reduce inventory overhead
  • Mitigate shortage risks

SIT9121差分晶振系列脚位定义与封装尺寸图




SIT9121差分晶振产品命名规则


标题 时间
频率:
MHz(输入频率值范围为1.0~~220.0MHZ)
输出电平模式:
抖动:
封装尺寸:
频率稳定度:
温度范围:
工作电压:
包装形式:
输出控制脚:
牵引范围:
扩频比例:
驱动强度:

选型生成SiTime型号如下:

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