NOTICE - The following device(s) are recommended alternatives:

The 8402 is a general purpose, Crystal-to-LVCMOS/LVTTL High Frequency Synthesizer. The 8402 has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics of the 8402 make it an ideal clock source for Gigabit Ethernet and SONET applications.

特性

  • 2 LVCMOS/LVTTL outputs
  • Selectable crystal oscillator interface
  • or LVCMOS/LVTTL TEST_CLK
  • Output frequency range: 15.625MHz to 350MHz
  • Crystal input frequency range: 12MHz to 40MHz
  • VCO range: 250MHz to 700MHz
  • Parallel or serial interface for programming counter and output dividers
  • RMS period jitter: 8ps (typical)
  • Cycle-to-cycle jitter: 40ps (typical)
  • Full 3.3V or mixed 3.3V core/2.5V output supply voltage
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free RoHS-compliant package
  • For replacement device use 840N202CKI-dddLF

产品选择

下单器件 ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete VFQFPN 32 C 是的 Tray
Availability
Obsolete TQFP 32 C 是的 Tray
Availability
Obsolete TQFP 32 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
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-845 Termination - LVCMOS 应用文档 PDF 146 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-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-834 Hot-Swap Recommendations 应用文档 PDF 153 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-14-07 Quarter PDN for Market Declined 产品停产通告 PDF 541 KB
PCN# : A1401-02 Alternate Copper Wire Assembly Site 产品变更通告 PDF 36 KB
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48 产品变更通告 PDF 472 KB
Downloads
8402 IBIS Model 模型 - IBIS ZIP 115 KB