The 840S05I is a four output, Crystal or single ended-to-LVCMOS/LVTTL Frequency Synthesizer and a member of family of high performance clock solutions from IDT. The 840S05I uses a 25MHz parallel resonant crystal to generate 33.33MHz – 166.67MHz clock signals, replacing solutions requiring multiple oscillator and fan-out buffer solution. The device supports output slew rate control with two slew select pins (SLEW[1:0]). The VCO operates at a frequency of 2GHz. The device has 2 output banks, Bank A with two 33.33MHz – 166.67MHz LVCMOS/LVTTL outputs and Bank B with two 33.33MHz – 166.67MHz LVCMOS/LVTTL outputs.

The two banks have their own dedicated frequency select pins and can be independently set for the frequencies mentioned above. The low phase noise characteristic of the 840S05I makes it an ideal clock source for Gigabit Ethernet application. Designed for networking and industrial applications, the 840S05I can also drive the high-speed clock inputs of communication processors, DSPs, switches and bridges.

Features

  • Four single-ended LVCMOS/LVTTL clock outputs
  • One REF_OUT LVCMOS/LVTTL clock output
  • Selectable crystal oscillator interface, 25MHz, 18pF parallel
    resonant crystal or LVCMOS/LVTTL single-ended reference input
  • Supports the following output frequencies on either bank:
    33.33MHz, 50MHz, 66.67MHz, 83.33MHz, 100MHz, 125MHz,
    133.33MHz, and 166.67MHz
  • VCO: 2GHz
  • Slew rate control
  • Output supply modes:
    Core/Output
    3.3V/3.3V
    3.3V/2.5V
  • -40°C to 85°C ambient operating temperature
  • Lead-free (RoHS 6) packaging​

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
840S05AYILF Active DXG32 PTQFP 32 I Yes Tray
Availability

技术资料

文档标题 他の言語 文档类型 文档格式 文件大小
数据手册与勘误表
840S05I Data Sheet Datasheet PDF 347 KB
应用指南 &白皮书
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-831 The Crystal Load curve Application Note PDF 308 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products Application Note PDF 44 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-839 RMS Phase Jitter Application Note PDF 149 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-837 Overdriving the Crystal Interface Application Note PDF 50 KB
AN-832 Timing Budget and Accuracy Application Note PDF 48 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 59 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
AN-801 Crystal-High Drive Level Application Note PDF 109 KB
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB
PCN / PDN
PCN# : A1709-02 Add alternate assembly at OSET and Convert to Copper Wire Product Change Notice PDF 35 KB
PCN# : A1402-02 Alternate Assembly Locations Product Change Notice PDF 34 KB
其它
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB