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Rainbow-electronics DS1086L Manual de usuario

Busca en linea o descarga Manual de usuario para Hardware De La Computadora Rainbow-electronics DS1086L. Rainbow Electronics DS1086L User Manual Manual de usuario

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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
1
2
8
7
SCL
SDASPRD
V
CC
OUT
µSOP/SO
TOP VIEW
3
4
6
5
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
V
CC
V
CC
V
CC
GND
N.C.
SCL*
SDA*
PDN
OE
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.
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Indice de contenidos

Pagina 1 - DS1086Z 8 SO (150mil)

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

Pagina 2 - DC ELECTRICAL CHARACTERISTICS

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

Pagina 3 - (see Table 2)

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

Pagina 4 - AC ELECTRICAL CHARACTERISTICS

DS1086DS1086 Spread-Spectrum EconOscillator12 ____________________________________________________________________Since the expected output frequency

Pagina 5

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

Pagina 6 - = 5.0V, T

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

Pagina 7 - Processor-Controlled Mode

DS1086DS1086 Spread-Spectrum EconOscillator2 _____________________________________________________________________ABSOLUTE MAXIMUM RATINGSRECOMMENDED

Pagina 8 - Detailed Description

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 3MASTER OSCILLATOR CHARACTERISTICS (V

Pagina 9

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

Pagina 10 - = 88.4736MHz

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

Pagina 11 - = 100.0MHz

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

Pagina 12 - 2-WIRE SERIAL DATA BUS

DS1086DS1086 Spread-Spectrum EconOscillator_____________________________________________________________________ 7Pin DescriptionPIN NAME FUNCTION1 OU

Pagina 13 - Slave Address

DS1086DS1086 Spread-Spectrum EconOscillator8 _____________________________________________________________________Detailed DescriptionA block diagram

Pagina 14 - Package Information

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

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