The IDT8V89308I is a PLL based synchronous multiplier specifically designed for applications utilizing Broadcom PHYs and Switches. This high performance device is optimized for Ethernet / SONET PDH frequency translation and clock jitter attenuation. The device contains two internal frequency multiplication stages that are cascaded in series. The first stage is a low bandwidth PLL that is optimized to provide reference clock jitter attenuation. The second stage is a FemtoClock® frequency multiplier that provides the low jitter, high frequency Ethernet output clock that easily meets Gigabit and 10 Gigabit Ethernet jitter requirements. Pre-divider and output divider multiplication ratios are selected using device selection control pins. The multiplication ratios are optimized to support most common clock rates used in Ethernet, SONET, PDH applications. IDT8V89308I requires the use of an external, inexpensive fundamental mode crystal and uses external passive loop filter components which allows configuration of the PLL loop bandwidth and damping characteristics. The device is packaged in a space-saving 32-VFQFN package and supports industrial temperature range.

特性

  • Two LVPECL output pairs Each output supports independent frequency selection at 25MHz, 125MHz and 156.25MHz
  • One differential input supports the following input types: LVPECL, LVDS
  • Accepts input frequencies 8kHz, 25MHz,125MHz and 155.52MHz
  • First stage PLL bandwidth can be optimized for jitter attenuation and reference tracking using external loop filter connection
  • FemtoClock frequency multiplier provides low jitter, high frequency output
  • Absolute pull range: 50ppm
  • FemtoClock VCO frequency: 625MHz
  • RMS phase jitter @ 25MHz, using a 25MHz crystal (12kHz '- 5MHz): 0.238ps (typical), 0.30ps (maximum)
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (12kHz '- 20MHz): 0.223ps (typical), 0.30ps (maximum)
  • RMS phase jitter @ 156.25MHz, using a 25MHz crystal (12kHz '- 20MHz): 0.223ps (typical), 0.30ps (maximum)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

产品选择

下单器件 ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active VFQFPN 32 I 是的 Tray
Availability
Active VFQFPN 32 I 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
8V89308I Data Sheet 数据手册 PDF 707 KB
应用指南 &白皮书
AN-861 Recommended Crystals for IDT VCXO-based Synchronization PLLs 应用文档 PDF 300 KB
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-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-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
PCN / PDN
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility 产品变更通告 PDF 983 KB
PCN# : A1807-01 Gold wire to Copper Wire 产品变更通告 PDF 32 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location 产品变更通告 PDF 583 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# : W1308-01 Change of Passivation Thickness 产品变更通告 PDF 941 KB
PCN# : N1302-01 Die revision change 产品变更通告 PDF 55 KB
Downloads
8V89308I 3.3V IBIS Model 模型 - IBIS ZIP 45 KB
其他
Timing Solutions Products Overview 概览 PDF 4.11 MB
IDT Clock Generation Overview 日本語 概览 PDF 1.83 MB
IDT Clock Distribution Overview 日本語 概览 PDF 3.79 MB