概览

简介

The 5P49V5933 is a programmable clock generator intended for high performance consumer, networking, industrial, computing, and data communications applications. Configurations may be stored in on-chip One-Time Programmable (OTP) memory or changed using an I2C interface. This is IDT's fifth generation of programmable clock technology (VersaClock® 5). The 5P49V5933, by default, uses an integrated 25 MHz crystal as an input reference. It also has a redundant external clock input. A glitchless manual switchover function allows selection of either input reference during normal operation.

Two select pins allow up to 4 different configurations to be programmed and accessible using processor GPIOs or bootstrapping. The different selections may be used for different operating modes (full function, partial function, partial power-down), regional standards (US, Japan, Europe) or system production margin testing. The device may be configured to use one of two I2C addresses to allow multiple devices to be used in a system.

特性

  • 2 differential outputs LVPECL, LVDS, HCSL - or 2 LVCMOS outputs
  • <0.7 ps RMS typical phase jitter on outputs
  • Two fractional output dividers (FODs)
  • Independent Spread Spectrum capability on each output pair
  • Stores 4 different configurations in OTP non-volatile memory
  • Up to 350 MHz input/output frequencies
  • Redundant clock inputs with manual switchover
  • Programmable loop bandwidth, output to output skew, slew rate control
  • Individual output enable/disable
  • Meets PCIe® Gen1/2/3, USB 3.0, 1/10 GbE clock requirements
  • 1.8 / 2.5 / 3.3V core and output voltages
  • 4x4 mm 24-pin VFQFPN package
  • -40° to +85°C operating temperature range
  • Supported by IDT Timing Commander™ software tool

产品对比

应用

文档

设计和开发

软件与工具

软件与工具

Software title
Software type
公司
Timing Commander
Timing Commander™ 是一个基于 Windows™ 的创新软件平台,通过这个平台,系统设计工程师可以通过直观且灵活的图形用户界面 (GUI) 对精密的计时设备进行配置、编程和监控。
Code Generator 瑞萨电子
1 item

软件下载

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软件和工具 - 软件 登录后下载 ZIP 18.02 MB
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2 items

开发板与套件

开发板与套件

模型

5P49V5935 and 5P49V5933 VersaClock 5 Lower Power Clock Generators with Integrated Crystal

Patrice Cater: Hi, I'm Patrice Cater of IDT, and I'd like to tell you about the latest iteration of the VersaClock 5 programmable clock generators. This addition to our broad portfolio of timing devices is really unique, in that these programmable clock generators feature an integrated crystal. This means engineers won't have to spend development time integrating the crystal themselves or tuning the frequency, and it means reduced board space because the entire device, including crystal, comes in a compact 4 x 4 mm package. And finally, the integrated crystal means fewer components for a smaller bill of materials. So, you get all the benefits of the original VersaClock 5, best-in-class jitter performance at half the power of competing devices. And the integrated crystal is the icing on the cake. Let's hear it from our product expert.

Baljit Chandhoke: Thanks, Patrice, for the great introduction of our new VersaClock 5 with integrated crystal. Now I'm going to show you on an evaluation board, what we are talking about. As you see on this evaluation board, the VersaClock 5 is really small. It's 4 mm x 4 mm, and as you see, there is no crystal. So the X1 is blank, so the crystal is inside the device. This enables our customers to have a comprehensive solution with no external components needed for frequency tuning. It also enables them to save on board space and lower the cost of BOM. In addition, this product, as you will see, is very versatile and it can be used for many different applications since it has the great performance of 0.7 picoseconds RMS phase jitter from 12k to 20 megahertz, and extremely low power with 30 milliamps core current consumption.

Patrice Cater: The VersaClock 5 devices with integrated crystals comes in two flavors, the 5p49v5933a which can generate two output frequencies, and the 5p49v5935a which can generate up to four. For more information, visit the IDT website or give Baljit a call.