LTC6990HS6#TRPBF

Programmable Timers And Oscillators Overview

The LTC6990HS6#TRPBF is a precision silicon oscillator from the TimerBlox family, offering a programmable frequency range of 488Hz to 2MHz. It functions as either a fixed-frequency or voltage-controlled oscillator (VCO). The output frequency is set by a single resistor at the SET pin and an internal divider (NDIV) selectable via the DIV pin. Key electrical parameters include a supply voltage range of 2.25V to 5.5V, CMOS logic output sourcing/sinking 20mA, and a typical frequency accuracy of ±0.8% in the recommended range. The device operates within a temperature range of –40°C to 125°C.

Programmable Timers And Oscillators Feature Summary

• Programmable frequency range from 488Hz to 2MHz using a single RSET resistor and NDIV divider settings (1 to 128)
• Voltage-controlled operation capability with linear frequency modulation via the SET pin
• CMOS output driver capable of sourcing and sinking 20mA with selectable high-impedance or low disabled states
• AEC-Q100 qualified for automotive applications with an operating temperature range of –40°C to 125°C

Programmable Timers And Oscillators Applications

• Voltage-Controlled Oscillator circuits
• Replacement for fixed crystal and ceramic oscillators
• Portable and battery-powered equipment
• High vibration and high acceleration environments

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRPBF indicates Tape and Reel packaging with Mini quantity specifications. Confirm the HS6 designation corresponds to the 6-Lead Plastic TSOT-23 package and the H grade ensures performance from –40°C to 125°C. Cross-reference the part number against official Analog Devices documentation to ensure compatibility with automotive quality requirements if applicable.

Programmable Timers And Oscillators Selection Notes

Select this component when a wide programmable frequency range is required without external crystals. Use the HS6 variant for industrial or automotive environments requiring operation up to 125°C. Ensure the application utilizes the recommended RSET range of 50kΩ to 800kΩ for optimal accuracy. Consider the NDIV setting to balance between power consumption and start-up time requirements.

Programmable Timers And Oscillators Part Context

The LTC6990HS6#TRPBF belongs to the TimerBlox family of versatile silicon timing devices manufactured by Analog Devices Inc. This series includes variants with different temperature grades (C, I, H, MP) and packages (DCB, S6). The HS6 specifically denotes the High temperature grade housed in the ThinSOT™ TSOT-23 package, designed for space-constrained and rugged applications.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements within the same family include LTC6990IS6#TRPBF for commercial temperature ranges and LTC6990MPS6#TRPBF for extended military-grade temperatures. Package-compatible alternatives exist in the DFN format, such as LTC6990HDCB#TRPBF, provided footprint adjustments are made.