The 843021 is a Gigabit Ethernet Clock Generator. The 84302 uses a 25MHz crystal to synthesize 125MHz. The 843021has excellent phase jitter performance, over the 1.875MHz – 20MHz integration range. The 843021is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

特性

  • One differential 3.3V LVPECL output
  • Crystal oscillator interface designed for 22.4MHz – 28MHz, 18pF parallel resonant crystal
  • Output frequency range: 112MHz – 140MHz
  • VCO range: 560MHz – 700MHz
  • Output duty cycle range: 49% – 51%
  • RMS phase jitter at 125MHz, using a 25MHz crystal (1.875MHz – 20MHz): 0.650ps (typical)
    Offset               Noise Power
     100Hz...............-94.2 dBc/Hz
       1kHz...............-122.8 dBc/Hz
      10kHz..............-132.2 dBc/Hz
    100kHz..............-131.3 dBc/Hz
  • Full 3.3V supply mode
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package
  • Industrial temperature information available upon request

产品选择

下单器件型号 Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete TSSOP 8 C 是的 Tube
Availability
Obsolete TSSOP 8 C 是的 Reel
Availability

文档和下载

文档标题 其他语言 类型 文档格式 文件大小 日期
数据手册与勘误表
843021 Datasheet 数据手册 PDF 350 KB
应用指南 &白皮书
AN-828 Termination - LVPECL 应用文档 PDF 322 KB
AN-831 The Crystal Load curve 应用文档 PDF 395 KB
AN-844 Termination - AC Coupling Clock Receivers 应用文档 PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection 应用文档 PDF 495 KB
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products 应用文档 PDF 128 KB
AN-840 Jitter Specifications for Timing Signals 应用文档 PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations 应用文档 PDF 115 KB
AN-839 RMS Phase Jitter 应用文档 PDF 233 KB
AN-834 Hot-Swap Recommendations 应用文档 PDF 153 KB
AN-837 Overdriving the Crystal Interface 应用文档 PDF 133 KB
AN-832 Timing Budget and Accuracy 应用文档 PDF 131 KB
AN-830 Quartz Crystal Drive Level 应用文档 PDF 143 KB
AN-827 Application Relevance of Clock Jitter 应用文档 PDF 1.15 MB
AN-815 Understanding Jitter Units 应用文档 PDF 565 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance 应用文档 PDF 136 KB
AN-801 Crystal-High Drive Level 应用文档 PDF 202 KB
AN-806 Power Supply Noise Rejection 应用文档 PDF 438 KB
AN-805 Recommended Ferrite Beads 应用文档 PDF 121 KB
PCN / PDN
PDN# : CQ-19-01(R1) Quarterly Market Declined PDN 产品停产通告 PDF 1014 KB
PDN# : CQ-19-01 Quarterly Market Declined PDN 产品停产通告 PDF 537 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly 产品变更通告 PDF 611 KB
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location 产品变更通告 PDF 596 KB
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location 产品变更通告 PDF 544 KB
PCN# : A1509-03 Gold to Copper wire 产品变更通告 PDF 31 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products 产品变更通告 PDF 361 KB
下载
843021 IBIS Model 模型 - IBIS ZIP 23 KB
其他
Timing Solutions Products Overview 概览 PDF 4.11 MB
IDT Products for Radio Applications 日本語 产品简述 PDF 2.34 MB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB