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.

General Description

The DS1099 is a low-cost, low-power, low-frequency

silicon oscillator that generates two square-wave out-

puts with frequencies between 0.25Hz and 1.048MHz.

Individual output enables allow both outputs to be

enabled/disabled independently. Both outputs are

capable of sinking 16mA, allowing them to directly

interface to light-emitting diodes (LEDs) as well as other

external circuitry. The DS1099 operates over a wide

supply voltage, making it suitable for both 3V and 5V

systems. The device is shipped from the factory custom

programmed and calibrated, ready to be inserted into

the end application.

Contact the factory for custom frequencies or

requirements.

Applications

Flashing LED Status Indicators

Consumer Appliances

Automotive

Servers

Printers

Switch-Mode Power Supplies

Features

♦ Low-Cost, Low-Frequency EconOscillator™ with

Dual Outputs

♦ Factory Programmed

♦ Output Frequencies Independently Programmable

from 0.25Hz to 1.048MHz

♦ 2.7V to 5.5V Single-Supply Operation

♦ No External Timing Components Required

♦ Independent Output Enables

♦ CMOS/TTL-Compatible Outputs

♦ Oscillator Outputs Capable of Sinking 16mA to

Directly Drive LEDs

♦ Relieves Microprocessor of Periodic Interrupt

♦ Low-Power Consumption

♦ Operating Temperature Range: -40°C to +125°C

♦ ±100ppm/°C Temp Drift (MAX)

Low-Frequency Dual EconOscillator

________________________________________________________________

Maxim Integrated Products

1

OE1

OEO

GND

1

2

8

7

N.C.

N.C.

OUT0

OUT1

μSOP

TOP VIEW

3

4

6

5

DS1099

Pin Configuration

Ordering Information

OUT0

OUT1

GND

OE0

OE1

N.C.

N.C.

OE1 CAN INSTEAD

IF OUT1 IS NOT USED.

OUTPUTS CAPABLE OF

SINKING 16mA

DS1099

Typical Operating Circuit

Rev 1; 9/07

PART

TEMP RANGE

PIN-PACKAGE

DS1099U-

O

1

-40°C to +125°C

8 μSOP

EconOscillator is a trademark of Dallas Semiconductor.

Ordering information is continued on the last page.

*

Where

tings for OUT0 and OUT1, respectively.

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.