Features and Benefits

  • 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)

Product Details

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.


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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

DS1099 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.



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