概览

The 342 is a low cost, dual-output, field programmable clock synthesizer. The 342 can generate two output frequencies from 250 kHz to 200 MHz, using up to two independently configurable PLLs. The outputs may employ Spread Spectrum techniques to reduce system electro-magnetic interference (EMI). Using ICS' VersaClockTM software to configure the PLL and output, the 342 contains a One-Time Programmable (OTP) ROM to allow field programmability. Programming features include 2 selectable configuration registers. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The device also has a power down feature that tri-states the clock outputs and turns off the PLLs when the PDTS pin is taken low. The 342 is also available in factory programmed custom versions for high-volume applications.

342 - Block Diagram
342 - Pinout
342 - Block Diagram
342 - Pinout
  • 8-pin SOIC package (Pb-free)
  • Highly accurate frequency generation
  • M/N Multiplier PLL: M = 1...2048, N = 1...1024
  • Output clock frequencies up to 200 MHz
  • Two ROM locations for frequency and spread selection
  • Spread spectrum capability for lower system EMI

文档

设计和开发

软件下载
类型 文档标题 日期
软件和工具 - 软件
VersaClock II Desktop Software Setup
登录后下载 ZIP 6.24 MB
1 item

ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    购买 / 样片
    器件号
    342MIPLF
    circle过时
    memory
    view_in_ar
    		SOIC 8 I Yes Tube
    342MIPLFT
    circle过时
    memory
    view_in_ar
    		SOIC 8 I Yes Reel
    342MPLF
    circle过时
    memory
    view_in_ar
    		SOIC 8 C Yes Tube
    342MPLFT
    circle过时
    memory
    view_in_ar
    		SOIC 8 C Yes Reel
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