DS1086L

更新时间： 2024-11-28 21:55:51

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
16页	259K
描述
3.3V Spread-Spectrum EconOscillator

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数据手册

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DS1086L 数据手册

Rev 0; 11/03

3.3V Spread-Spectrum EconOscillator

General Description

Features

The DS1086L EconOscillator™ is a 3.3V programmable

clock generator that produces a spread-spectrum

(dithered) square-wave output of frequencies from

130kHz to 66.6MHz. The selectable dithered output

reduces radiated-emission peaks by dithering the fre-

quency 0.5%,1%, 2%, 4%, or 8% below the pro-

grammed frequency. The DS1086L has a power-down

mode and an output-enable control for power-sensitive

applications. All the device settings are stored in non-

volatile (NV) EEPROM memory allowing it to operate in

stand-alone applications.

♦ User-Programmable Square-Wave Generator

♦ Frequencies Programmable from 130kHz to

66.6MHz

♦ 0.5%, 1%, 2%, 4%, or 8% Selectable Dithered

Output

♦ Adjustable Dither Rate

♦ Glitchless Output-Enable Control

♦ 2-Wire Serial Interface

♦ Nonvolatile Settings

Applications

♦ 2.7V to 3.6V Supply

Printers

♦ No External Timing Components Required

♦ Power-Down Mode

Copiers

PCs

Computer Peripherals

Cell Phones

Cable Modems

♦ 5kHz Master Frequency Step Size

♦ EMI Reduction

♦ Industrial Temperature Range: -40°C to +85°C

Ordering Information

TEMP RANGE

PART

PIN-PACKAGE

-40°C to +85°C

DS1086LU

8 µSOP (118 mil)

Typical Operating Circuit

Pin Configuration

TOP VIEW

DITHERED 130kHz TO

66.6MHz OUTPUT

µP

SCL*

XTL1/OSC1

XTL2/OSC2

OUT

SCL

SDA

PDN

SPRD

SDA*

PDN

N.C.

DS1086L

SPRD

DS1086L

GND

DECOUPLING CAPACITORS

(0.1µF and 0.01µF)

*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086L NEVER NEEDS

TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.

µSOP

EconOscillator is a trademark of Dallas Semiconductor.

______________________________________________ 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...16

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