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General Description

The DS1086 EconOscillator™ is a programmable clock

generator that produces a spread-spectrum (dithered)

square-wave output of frequencies from 260kHz to

133MHz. The selectable dithered output reduces radi-

ated-emission peaks by dithering the frequency 2% or

4% below the programmed frequency. The DS1086 has

a power-down mode and an output-enable control for

power-sensitive applications. All the device settings are

stored in nonvolatile (NV) EEPROM memory allowing it

to operate in stand-alone applications.

Applications

Printers

Copiers

PCs

Computer Peripherals

Cell Phones

Cable Modems

Features

♦ User-Programmable Square-Wave Generator

♦ Frequencies Programmable from 260kHz to

133MHz

♦ 2% or 4% Selectable Dithered Output

♦ Glitchless Output-Enable Control

♦ 2-Wire Serial Interface

♦ Nonvolatile Settings

♦ 5V Supply

♦ No External Timing Components Required

♦ Power-Down Mode

♦ 10kHz Master Frequency Step Size

♦ EMI Reduction

DS1086

DS1086 Spread-Spectrum EconOscillator

______________________________________________ Maxim Integrated Products 1

PDN

OEGND

SCL

SDASPRD

OUT

µSOP/SO

TOP VIEW

DS1086

Pin Configuration

Ordering Information

DS1086

XTL1/OSC1

MICRO-

PROCESSOR

XTL2/OSC2

DITHERED 260kHz TO

133MHz OUTPUT

DECOUPLING CAPACITORS

(0.1µF and 0.01µF)

*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086 NEVER NEEDS

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

SPRD

OUT

GND

N.C.

SCL*

SDA*

PDN

Typical Operating Circuit

Rev 1; 9/03

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.

*Future Product

PART PIN-PACKAGE

DS1086U* 8 µSOP (118mil)

DS1086Z 8 SO (150mil)

EconOscillator is a trademark of Dallas Semiconductor.

1 2 3 4 5 6 ... 13 14

Resumo do Conteúdo

Página 1 - DS1086Z 8 SO (150mil)

General DescriptionThe DS1086 EconOscillator™ is a programmable clockgenerator that produces a spread-spectrum (dithered)square-wave output of frequen

Página 2 - DC ELECTRICAL CHARACTERISTICS

DS1086DS1086 Spread-Spectrum EconOscillator10 ____________________________________________________________________ADDR RegisterThe A0, A1, A2 bits det

Página 3 - (see Table 2)

DS1086DS1086 Spread-Spectrum EconOscillator____________________________________________________________________ 11must be read from the RANGE register

Página 4 - AC ELECTRICAL CHARACTERISTICS

DS1086DS1086 Spread-Spectrum EconOscillator12 ____________________________________________________________________Since the expected output frequency

Página 5

Each data transfer is initiated with a START conditionand terminated with a STOP condition. The number ofdata bytes transferred between START and STOP

Página 6 - = 5.0V, T

DS1086DS1086 Spread-Spectrum EconOscillatorMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Max

Página 7 - Processor-Controlled Mode

DS1086DS1086 Spread-Spectrum EconOscillator2 _____________________________________________________________________ABSOLUTE MAXIMUM RATINGSRECOMMENDED

Página 8 - Detailed Description

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 3MASTER OSCILLATOR CHARACTERISTICS (V

Página 9

DS1086DS1086 Spread-Spectrum EconOscillator4 _____________________________________________________________________AC ELECTRICAL CHARACTERISTICS(VCC= 5

Página 10 - = 88.4736MHz

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 5AC ELECTRICAL CHARACTERISTICS: 2-WIR

Página 11 - = 100.0MHz

Typical Operating Characteristics(VCC= 5.0V, TA= 25°C, unless otherwise noted)DS1086DS1086 Spread-Spectrum EconOscillator6 ___________________________

Página 12 - 2-WIRE SERIAL DATA BUS

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 7Pin DescriptionPIN NAME FUNCTION1 OU

Página 13 - Slave Address

DS1086DS1086 Spread-Spectrum EconOscillator8 _____________________________________________________________________Detailed DescriptionA block diagram

Página 14 - Package Information

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 9The output frequency is determined b

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Rainbow-electronics DS1086L Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware de computador Rainbow-electronics DS1086L. Rainbow Electronics DS1086L User Manual Manual do Utilizador

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