The DS1099 is a low-cost, low-power, low-frequency silicon oscillator that generates two square-wave outputs 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.

DS1099: Typical Operating Circuit

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Key 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)

Applications/Uses

Consumer Appliances
Flashing LED Status Indicators
Printers
Servers
Switch-Mode Power Supplies

Key Specs

Part Number

f_OUT
(MHz)

f_OUT
(kHz)

User Prog. f_OUT

Spread Spectrum

V_CC
(V)

Reset Out

Oper. Temp.
(°C)

Package/Pins

Budgetary
Price

max

min

See Notes

DS1099

1.048

0.00025

2.7 to 5.5

-40 to +125

µMAX/8

$0.67 @1k

See All Silicon Oscillators (19)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.