Datasheet > DS1089LU-21G

DS1089LU-21G

更新时间： 2024-11-08 21:54:39

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
12页	490K
描述
3.3V Center Spread`Spectrum EconOscillator

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中文翻译

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数据手册

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DS1089LU-21G 数据手册

Rev 1; 9/05

3.3V Center Spread-Spectrum EconOscillator™

General Description

Features

♦ Factory-Programmed Square-Wave Generator

The DS1089L is a clock generator that produces a

spread spectrum (dithered) square-wave output of fre-

quencies from 130kHz to 66.6MHz. The DS1089L is

shipped from the factory programmed at a specific fre-

quency. The DS1089L is pin-for-pin compatible with the

DS1087L, however, the DS1089L dithers at equal per-

centages above and below the center frequency. The

user still has access to the internal frequency divider,

selectable 1%, 2%, 4%, or 8% dithered output,

dithering rate, and programmable output power-

down/disable mode through an I²C™-compatible pro-

gramming interface. All the device settings are stored

in nonvolatile (NV) EEPROM allowing it to operate in

stand-alone applications. The DS1089L also has

power-down and output-enable control pins for power-

sensitive applications.

from 33.3MHz to 66.6MHz

♦ Center Frequency Remains Constant Independent

of Dither Percentage

♦ No External Timing Components Required

♦ EMI Reduction

♦ Variable Dither Frequency

♦ User Programmable Down to 130kHz with Divider

(Dependent on Master Oscillator Frequency)

♦

1%, 2%, 4%, or 8% Selectable Dithered

Output

♦ Glitchless Output-Enable Control

♦ I²C-Compatible Serial Interface

♦ Nonvolatile Settings

♦ Power-Down Mode

♦ Programmable Output Power-Down/Disable Mode

Applications

Automotive Infotainment

Printers

Copiers

Ordering Information

Computer Peripherals

POS Terminals

Cable Modems

PART

TEMP RANGE

PIN-PACKAGE

DS1089LU-yxx*

-40°C to +85°C

8 µSOP (118 mil)

*See Standard Frequency Options Table.

Pin Configuration and Typical Operating Circuits appear at end of data sheet.

Standard Frequency Options

PART

DS1089LU-21G

DS1089LU-4CL

DS1089LU-22F

FREQUENCY (MHz)

14.7456

SPREAD ( %)

DITHER FREQUENCY

/ 4096

/ 2048

/ 4096

MOSC

18.432

24.576

DS1089LU-23C

DS1089LU-450

33.3

50.0

DS1089LU-866

66.6

DS1089LU-yxx

Fixed up to 66.6

1, 2, 4, or 8

/ 2048 or 4096 or 8192

MOSC

Add “/T” for Tape and Reel.

Custom frequencies available, contact factory.

EconOscillator is a trademark of Dallas Semiconductor Corp.

I C is a trademark of Philips Corp. Purchase of I C components from Maxim Integrated Products, Inc., or one of its sublicensed

Associated Companies, conveys a license under the Philips I C Patent Rights to use these components in an I C system, provided

that the system conforms to the I C Standard Specification as defined by Philips.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...12

中文翻译

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与DS1089LU-21G相关器件

型号	品牌	获取价格	描述	数据表
DS1089LU-21G+	MAXIM	获取价格	3.3V Center Spread-Spectrum EconOscillator™
DS1089LU-22F	MAXIM	获取价格	3.3V Center Spread`Spectrum EconOscillator
DS1089LU-22F/T	MAXIM	获取价格	Clock Generator, 24.576MHz, CMOS, PDSO8, 0.118 INCH, MICRO, SOP-8
DS1089LU-22F+	MAXIM	获取价格	Clock Generator, 24.576MHz, CMOS, PDSO8, 0.118 INCH, MICRO, SOP-8
DS1089LU-23C	MAXIM	获取价格	3.3V Center Spread`Spectrum EconOscillator
DS1089LU-23C/T	MAXIM	获取价格	Clock Generator, 33.3MHz, CMOS, PDSO8, 0.118 INCH, MICRO, SOP-8
DS1089LU-450	MAXIM	获取价格	3.3V Center Spread`Spectrum EconOscillator
DS1089LU-450/T	MAXIM	获取价格	暂无描述
DS1089LU-450+	MAXIM	获取价格	暂无描述
DS1089LU-4CL	MAXIM	获取价格	3.3V Center Spread`Spectrum EconOscillator

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