DS1099U-FA/V+T

Clock Generators, PLLs, Frequency Synthesizers Overview

The DS1099U-FA/V+T is a low-frequency silicon oscillator generating two independent square-wave outputs. It operates on a single supply voltage ranging from 2.7V to 5.5V and requires no external timing components. The device features a fixed 1.048MHz master oscillator with factory-programmable dividers, allowing output frequencies between 0.25Hz and 1.048MHz. Outputs can sink up to 16mA for direct LED driving and include individual enable pins (OE0, OE1). It functions within an operating temperature range of -40°C to +125°C in an 8-pin µSOP package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual independent outputs with frequencies programmable from 0.25Hz to 1.048MHz via factory-set dividers
• Low-power consumption with standby current as low as 145µA and active current around 323µA at maximum frequency
• Outputs capable of sinking 16mA to directly drive LEDs or other external circuitry
• Individual output enables allow independent control of OUT0 and OUT1 states

Clock Generators, PLLs, Frequency Synthesizers Applications

• Flashing LED status indicators
• Consumer appliances
• Servers
• Printers
• Switch-mode power supplies

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific divider settings (X0 and X1) corresponding to the 'FA' suffix, as these determine the exact output frequencies. Confirm that the 8-pin µSOP package matches the design footprint. Ensure the voltage range and temperature specifications align with the target system requirements before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a low-cost, low-power clock source is needed without external crystals or resonators. The dual-output capability allows for separate timing signals. Consider the 16mA sink current if direct LED interfacing is required. Verify that the ±100ppm/°C temperature drift meets the application's stability needs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The DS1099U-FA/V+T belongs to the EconOscillator family, designed to replace traditional discrete oscillators. It integrates a master oscillator and programmable dividers into a single chip. The 'U' indicates the µSOP package, while the suffix specifies the factory-programmed frequency settings.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct pin-to-pin replacements may require matching the specific output frequencies defined by the divider settings. Other devices in the DS1099 series offer different frequency options but maintain similar electrical characteristics and packaging.