Datasheet > IMISG528BXB

IMISG528BXB

更新时间： 2024-01-07 12:52:10

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		光电二极管外围集成电路
页数	文件大小	规格书
12页	120K
描述
Clock Generator, CMOS, PDSO16

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IMISG528BXB 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.28
JESD-30 代码：	R-PDSO-G16	端子数量：	16
封装主体材料：	PLASTIC/EPOXY	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
表面贴装：	YES	技术：	CMOS
端子形式：	GULL WING	端子位置：	DUAL
uPs/uCs/外围集成电路类型：	CLOCK GENERATOR, OTHER	Base Number Matches：	1

IMISG528BXB 数据手册

SG521/22/24/28

Spread Spectrum Clock Generator

Approved Product

Features

Applications

•

CPU and µC Based Digital Systems

Laser and Inkjet Printers

Digital Copiers

Multifunction Products (MFPs)

Disk Drives

CD-ROM

Automotive

Video and Imaging Applications

•

Generates Spread Spectrum Clock (SSC)

Programmable Frequencies from 10 to 120 MHz

1.00% and 3.00% Down-Spread Options

Separate Non-Modulated Clock

Pin-Programmable Spread on/off Function

50% Output Clock Duty Cycle

Power-Down Mode for Low Power Dissipation

TTL or CMOS Compatible Outputs

Low Cycle-to-Cycle Jitter of 250 ps-max

External Clock or Crystal Oscillator Operation

Glitch-Free Switching

Benefits

3 to 5V Operation Supply Range

16-Pin Plastic SOIC Package

•

12 to 20dB EMI Reduction

Fast Time to Market

Low System and Development Cost

General Description

IMI SG521/22/24/28 products are Spread Spectrum Clock Generators designed to reduce the high levels of

Electromagnetic Interference (EMI) found in high-speed digital systems.

By using a modulated clock as the source for all system clocks and timing signals, the amount of radiated energy

(EMI) throughout the system is greatly reduced. Energy reduction is related to the harmonic frequency, such that

the higher the frequency the greater the energy reduction. The 5^thharmonic has greater energy reduction than the

fundamental frequency.

The SG521/2/4/8 products produce a wide range of clock frequencies from 10 to 120 MHz, which are frequency

modulated (PRCLK) by using a Spread Spectrum Clock (SSC) technique to reduce electromagnetic interference

(EMI). In addition, a non-modulated clock output (MPCLK) with various standard clock frequencies is also provided

for the part of the system that could be sensitive to a modulated clock. Refer to the Product Selection and

Frequency Selection Truth Tables for the available modulated and non-modulated clock frequencies.

The spread function can be turned on or off using the SSON control line. When spread is enabled, the modulated

output clock is down-spread at either 1.00% or 3.00% total spread.

These products are designed to be used with fixed frequency external clocks or crystal oscillators. The output clock

frequencies are designed using a 14.318, 44.24 or 48 MHz reference clock.

The products operate from a 3 to 5 volt power supply and 0 to 70°C temperature range. The SG521/2/4/8 parts are

available in 16-pin plastic SOIC packages and in die form.

Contact IMI for other packaging and Spread Spectrum Clock Generator (SSCG) products.

INTERNATIONAL MICROCIRCUITS,INC. 525 LOS COCHES ST.,

MILPITAS, CA 95035 408-263-6300, FAX 408-263-6571

http:/www.imicorp.com

Rev. 1.3

7/21/1999

Page 1 of 12

12 3 4 5 6 7...12

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