General Description

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.

Applications

Printers

Copiers

PCs

Computer Peripherals

Cell Phones

Cable Modems

Features

o User-Programmable Square-Wave Generator

o Frequencies Programmable from 130kHz to

66.6MHz

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

Output

o Adjustable Dither Rate

o Glitchless Output-Enable Control

o 2-Wire Serial Interface

o Nonvolatile Settings

o 2.7V to 3.6V Supply

o No External Timing Components Required

o Power-Down Mode

o 5kHz Master Frequency Step Size

o EMI Reduction

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

3.3V Spread-Spectrum EconOscillator

PDN

OE

GND

1

2

8

7

SCL

SDA

SPRD

OUT

µSOP

TOP VIEW

3

4

6

5

DS1086L

Pin Configuration

Ordering Information

XTL1/OSC1

µP

XTL2/OSC2

DITHERED 130kHz TO

66.6MHz OUTPUT

DECOUPLING CAPACITORS

(0.1

µF 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.

SPRD

OUT

GND

N.C.

SCL*

SDA*

PDN

OE

DS1086L

Typical Operating Circuit

19-6226; Rev 2; 3/12

PART

TEMP RANGE

PIN-PACKAGE

DS1086LU

-40°C to +85°C

8

µSOP (118 mils)

DS1086LU+

-40°C to +85°C

8

µSOP (118 mils)

EconOscillator is a trademark of Maxim Integrated Products, Inc.

________________________________________________________________

Maxim Integrated Products

1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Note: Contact the factory for custom settings.

+

Denotes a lead(Pb)-free/RoHS-compliant package.