LTC6990IDCB#TRMPBF

Programmable Timers And Oscillators Overview

The LTC6990IDCB#TRMPBF is a precision silicon oscillator from the TimerBlox family, manufactured by Analog Devices Inc. It operates within a programmable frequency range of 488Hz to 2MHz and supports both fixed-frequency and voltage-controlled oscillator (VCO) modes. The device functions on a supply voltage between 2.25V and 5.5V with a typical supply current of 235µA at 5.5V. It features a CMOS logic output capable of sourcing or sinking 20mA, providing a 50% duty cycle square wave. The component is housed in a 6-lead (2mm × 3mm) plastic DFN package and is specified for an operating temperature range of –40°C to 85°C.

Programmable Timers And Oscillators Feature Summary

• Programmable frequency range from 488Hz to 2MHz using a single resistor or VCO configuration
• CMOS output driver with 20mA source/sink capability and selectable high-impedance or low disabled state
• Internal master oscillator with 1MHz max frequency and programmable divider (NDIV) from 1 to 128
• Low power consumption with 235µA typical supply current at 5.5V

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 #TRMPBF indicates Mini Tape and Reel packaging containing 500 units. Confirm the IDCB designation corresponds to the 6-lead DFN package and the I grade ensures performance from –40°C to 85°C. Cross-reference the full part number against official Analog Devices documentation to ensure compatibility with automotive or industrial quality requirements if applicable.

Programmable Timers And Oscillators Selection Notes

Select this variant when a compact DFN footprint is required alongside an industrial temperature rating of –40°C to 85°C. Ensure the application utilizes RSET values between 50kΩ and 800kΩ for recommended accuracy. For VCO applications, verify that the control voltage range aligns with the SET pin characteristics. Consider the NDIV setting to balance start-up time, jitter, and power consumption based on the target output frequency.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6990 TimerBlox family of versatile silicon timing devices. The IDCB suffix specifically denotes the Industrial temperature grade (-40°C to 85°C) and the DCB 6-lead DFN package. Other variants in the family include C-grade (Commercial), H-grade (Extended), and MP-grade (Military) options, available in both DFN and TSOT-23 packages.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements include other LTC6990 variants with different temperature grades or packages, such as LTC6990CDCB#TRMPBF (C-grade) or LTC6990IS6#TRMPBF (I-grade in TSOT-23). Verify that the substitute part matches the required operating temperature range and physical package dimensions for PCB compatibility.