The 849N212I is a highly flexible FemtoClock NG general purpose, low phase noise Universal Frequency Translator / Synthesizer with alarm and monitoring function suitable for networking and communications applications. The 849N212I has three operating modes to support a very broad spectrum of applications: frequency Synthesizer, high-bandwidth frequency translator, and low-bandwidth frequency translator. This device provides two factory-programmed default power-up configurations burned into One-Time Programmable (OTP) memory. To implement other configurations, these power-up default settings can be overwritten after power-up using the I2C interface and the device can be completely reconfigured.

To see other devices in this product family, visit the Universal Frequency Translators page.

Features

  • Two Output Universal Frequency Translator/Frequency Synthesizer
  • One programmable as LVPECL or LVDS, One LVCMOS
  • Programmable output frequency: 1.0MHz to 250MHz
  • Two differential inputs support the following input types: LVPECL, LVDS, LVHSTL, HCSL
  • Input frequency range: 8kHz - 710MHz , Crystal input frequency range: 16MHz - 40MHz
  • Two factory-set register configurations for power-up default state
  • I2C Serial interface for register programming
  • RMS phase jitter at 125MHz, using a 40MHz crystal (12kHz - 20MHz): 558fs (typical), Low Bandwidth Mode (FracN)
  • RMS phase jitter at 125MHz, using a 100MHz input clock (12kHz - 20MHz): 388fs (typical), High Bandwidth Mode (Integer FB)
  • -40\xB0C to 85\xB0C ambient operating temperature

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
849N212CKI-999LF Active NLG40P2 VFQFPN 40 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
ICS849N212I Datasheet PDF 727 KB
使用指南与说明
FemtoNG Universal Frequency Translator Ordering Product Information Guide Manual - User Reference PDF 447 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-846 Termination - LVDS Application Note PDF 50 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-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 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-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB
AN-837 Overdriving the Crystal Interface Application Note PDF 50 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 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# : A1809-04 Add Alternate Assembly Location for QFN packages Product Change Notice PDF 36 KB
PCN# : W1308-01 Change of Passivation Thickness Product Change Notice PDF 941 KB
其它
Timing Solutions Products Overview Overview PDF 4.11 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
Timing Fabric for Communications Equipment Overview Overview PDF 263 KB
FemtoClockNG-UniversalFrequencyTranslators Product Brief PDF 1.06 MB