NOTICE - The following device(s) are recommended alternatives:
The 8442I-90 is a general purpose, dual output Crystal-to-Differential LVDS High Frequency Synthesizer. The 8442I-90 has a selectable REF_CLK or crystal input. The REF_CLK input accepts LVCMOS or LVTTL input levels and translates them to LVDS levels. 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 interface to the configuration logic.

特性

  • Dual differential LVDS outputs FOUT1/nFOUT1 lags FOUT0/nFOUT0 by 90°
  • Selectable crystal oscillator interface or LVCMOS/LVTTL REF_CLK
  • Output frequency range: 31.25MHz - 700MHz
  • Crystal input frequency range: 10MHz to 25MHz
  • VCO range: 250MHz - 700MHz
  • Parallel or serial interface for programming counter and output dividers
  • RMS period jitter: 7ps (maximum), (N= ÷1, ÷2, ÷4)
  • Cycle-to-cycle jitter: 34ps (maximum), (N= ÷1, ÷2)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

产品选择

器件号 Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
8442AKI-90LF
Obsolete VFQFPN 32 I 是的 Tray
Availability
8442AKI-90LFT
Obsolete VFQFPN 32 I 是的 Reel
Availability

文档和下载

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
8442I-90 Final Datasheet 数据手册 PDF 233 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-846 Termination - LVDS 应用文档 PDF 133 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-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-836 Differential Input to Accept Single-ended Levels 应用文档 PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced 应用文档 PDF 160 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
AN-803 Crystal Timing Budget and Accuracy for Renesas Timing Clock Products 应用文档 PDF 108 KB
PCN / PDN
PDN# : CQ-14-02R2 产品停产通告 PDF 549 KB
PDN# : CQ-14-02R1 PRODUCT DISCONTINUANCE NOTICE 产品停产通告 PDF 545 KB
PDN# : CQ-14-02 PRODUCT DISCONTINUANCE NOTICE 产品停产通告 PDF 544 KB