CDCS501

更新时间： 2024-11-06 06:47:07

品牌	Logo	应用领域
德州仪器 - TI		时钟发生器
页数	文件大小	规格书
10页	301K
描述
SSC Clock Generator/Buffer

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数据手册
替代型号

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CDCS501 数据手册

CDCS501

www.ti.com ..................................................................................................................................................................................................... SCAS874–APRIL 2009

SSC Clock Generator/Buffer

FEATURES

APPLICATIONS

•

Consumer and Industrial Applications

Requiring EMI Reduction through Spread

Spectrum Clocking

•

Part of a Family of Easy to use Clock

Generator Devices With Optional SSC

•

SSC Capable Clock Generator / Buffer

SSC Controllable via 3 External Pins

PACKAGE

–

±0% to ±1.5% Center Spread

VDD

•

1 External Control Pin for SSC ON / OFF

Selection

SSC_SEL 0

SSC_SEL 2

CDCS501

SSC_SEL 1

GND

OUT

SSC_ON

40 MHz to 108 MHz Single-Ended LVCMOS

Input

•

Single 3.3V Device Power Supply

Wide Temperature Range – 40°C to 85°C

Low Space Consumption by 8 Pin TSSOP

Package

BLOCK DIAGRAM

V_DD

GND

CMOS

LVCMOS

SSC Generator

OUT

SSC_SEL 0

SSC_SEL 1

SPREAD

LOOK-UP

TABLE

SSC_SEL 2

SSC_ON

DESCRIPTION

The CDCS501 is a spread spectrum capable, LVCMOS Input Clock Buffer for EMI reduction.

The device is designed to counter common EMI problems in modern electronic designs.

It accepts a 3.3V LVCMOS signal at the input and spread this signal by a small amount, centered around the

input frequency. The amount of spread can be selected via 3 control pins. The Functional Table contains detailed

information on the amount of spread. A 4th control pin can be used to activate or deactivate the Spread

Spectrum Clock Generator.

Selecting SSC_ON = off will turn the Spread Spectrum Clock Generator off only. The device will still pass the

LVCMOS signal that’s presented at its input trough to its output. This pin is low active.

The wide operating frequency range covers most commonly used midrange Audio and Video frequencies. The

CDCS501 operates in 3.3V environment.

It is characterized for operation from –40°C to 85°C, and available in an 8-pin TSSOP package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...10

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CDCS501 替代型号

型号	品牌	替代类型	描述	数据表
CDCS502	TI	功能相似	Crystal Oscillator / Clock Generator with optional SSC
CDCE949	TI	功能相似	Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs
CDCE913	TI	功能相似	Programmable 1-PLL VCXO Clock Synthesizer With 1.8-V, 2.5-V, and 3.3-V Outputs

与CDCS501相关器件

型号	品牌	获取价格	描述	数据表
CDCS501PW	TI	获取价格	SSC Clock Generator/Buffer
CDCS501PWR	TI	获取价格	SSC Clock Generator/Buffer
CDCS502	TI	获取价格	Crystal Oscillator / Clock Generator with optional SSC
CDCS502_12	TI	获取价格	Crystal Oscillator / Clock Generator with optional SSC
CDCS502PW	TI	获取价格	Crystal Oscillator / Clock Generator with optional SSC
CDCS502PWR	TI	获取价格	Crystal Oscillator / Clock Generator with optional SSC
CDCS503	TI	获取价格	Clock Buffer/Clock Multiplier With Optional SSC
CDCS503PW	TI	获取价格	具有可选 SSC 的时钟缓冲器/时钟倍频器 \| PW \| 8 \| -40 to 85
CDCS503PWR	TI	获取价格	具有可选 SSC 的时钟缓冲器/时钟倍频器 \| PW \| 8 \| -40 to 85
CDCS503-Q1	TI	获取价格	Clock Buffer/Clock Multiplier With Optional SSC

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