Low-Frequency Dual EconOscillator
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 require-
●● Flashing LED Status Indicators
●● Consumer Appliances
●● Switch-Mode Power Supplies
●● Low-Cost, Low-Frequency EconOscillator™ with
●● 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)
DS1099U- a O a 1 -40°C to +125°C
*Where α 0 and α 1 specify the factory-programmed divider
settings for OUT0 and OUT1, respectively.
Ordering information is continued on the last page.
EconOscillator is a trademark of Maxim Integrated Products, Inc.
Typical Operating Circuit
OE1 CAN INSTEAD
BE TIED TO VCC
IF OUT1 IS NOT USED.
OUTPUTS CAPABLE OF
19-7629; Rev 2; 5/15