The 270 field programmable VCXO clock synthesizer generates up to eight high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 270 contains a One-Time Programmable (OTP) ROM for field programmability. Programming features include VCXO, eight selectable configuration registers and up to two sets of four low-skew outputs. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace VCXOs, multiple crystals and oscillators, saving board space and cost. The 270 is also available in factory programmed custom versions for high-volume applications.

Features

  • Packaged as 20-pin TSSOP – Pb-free, RoHS compliant
  • Eight addressable registers
  • Replaces multiple crystals and oscillators
  • Output frequencies up to 200 MHz at 3.3 V
  • Input crystal frequency of 5 to 27 MHz
  • Up to eight reference outputs
  • Up to two sets of four low-skew outputs
  • Operating voltages of 3.3 V
  • Controllable output drive levels
  • Advanced, low-power CMOS process

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
270PGILF Obsolete PGG20 TSSOP 20 I Yes Tube
Availability
270PGILFT Obsolete PGG20 TSSOP 20 I Yes Reel
Availability
270PGLF Obsolete PGG20 TSSOP 20 C Yes Tube
Availability
270PGLFT Obsolete PGG20 TSSOP 20 C Yes Reel
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
270 Datasheet Datasheet PDF 228 KB
使用指南与说明
VersaClock II User Guide Manual Manual - User Reference PDF 612 KB
应用指南 &白皮书
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-841 Pullable Crystal Selection and VCXO Tuning Application Note PDF 248 KB
AN-831 The Crystal Load curve Application Note PDF 308 KB
AN-849 Loop Filter Component Selection for VCXO Based PLLs Application Note PDF 132 KB
AN-848 VCXO - Crystal Selection Application Note PDF 138 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-847 VCXO - Absolute Pull Range Application Note PDF 70 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-800 Approved VCXO Crystals Application Note PDF 63 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
Using IDT's Integrated VCXO Products MAN05 Application Note PDF 69 KB

软件与工具

文档标题 他の言語 文档类型 文档格式 文件大小
VersaClock II Desktop Software Setup Software ZIP 6.24 MB