LTC6905CS5-100#TRMPBF

Programmable Timers And Oscillators Overview

The LTC6905CS5-100#TRMPBF is a fixed frequency silicon oscillator from Analog Devices, programmed at the factory for a master clock of 100MHz. It operates on a single 2.7V to 5.5V supply and provides a rail-to-rail CMOS output with a typical duty cycle of 50% ±2.5%. The device features an internal three-state divider allowing outputs of 100MHz (÷1), 50MHz (÷2), or 25MHz (÷4). Key electrical specifications include a typical frequency accuracy of ±0.5%, a temperature stability of ±20ppm/°C, and a fast start-up time of 100µs. It is housed in a low-profile 1mm ThinSOT package.

Programmable Timers And Oscillators Feature Summary

• Factory-programmed fixed frequency of 100MHz with no external components required
• Internal three-state divider provides selectable frequencies: 100MHz, 50MHz, and 25MHz
• High frequency accuracy of ±0.5% typical at 25°C and ±1.5% over the 0°C to 70°C range
• Low profile 1mm ThinSOT-5 package designed to minimize board space

Programmable Timers And Oscillators Applications

• Data clocks for high reliability applications
• Clock sources in high vibration and high acceleration environments
• Replacement for fixed crystal and ceramic oscillators

Programmable Timers And Oscillators Procurement Notes

Verify the ordering suffix #TRMPBF corresponds to the specific tape and reel packaging configuration defined by Analog Devices. Confirm that the 'C' grade designation meets the required specified temperature range of 0°C to 70°C for the target application environment.

Programmable Timers And Oscillators Selection Notes

Select this part when a precise 100MHz reference is needed without external trimming. Ensure the power supply noise does not contain content near fMO/64 (1.5625MHz) to maintain frequency accuracy. Verify that the load capacitance requirements are met, as performance driving loads greater than 5pF depends on the oscillator's output resistance and frequency.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6905-XXX series of precision, fixed frequency silicon oscillators. Other family members include the LTC6905-133 (133MHz), LTC6905-96 (96MHz), and LTC6905-80 (80MHz). The series is characterized by its ability to replace traditional discrete oscillators while offering integrated divide-by functionality.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.