LTC6905IS5-133#TRMPBF

Programmable Timers And Oscillators Overview

The LTC6905IS5-133#TRMPBF is a precision, fixed-frequency silicon oscillator from Analog Devices Inc., housed in a 5-lead ThinSOT (TSOT-23) package. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers a rail-to-rail CMOS output with a typical 50% duty cycle. The device is factory-programmed for a master oscillation frequency of 133MHz, which can be divided by 1, 2, or 4 via the DIV pin to provide outputs of 133MHz, 66.7MHz, or 33.3MHz. Key electrical specifications include a typical frequency accuracy of ±0.5%, a temperature stability of ±20ppm/°C, and a typical start-up time of 100µs.

Programmable Timers And Oscillators Feature Summary

• Factory-trimmed fixed frequency of 133MHz with internal divide-by-1, 2, or 4 options
• High frequency accuracy: ±0.5% typical at 25°C, ±2.9% max over -40°C to 85°C
• Low profile 1mm ThinSOT (TSOT-23-5) surface-mount package
• Output enable (OE) pin for synchronous disabling without pulse slivers

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 that the #TRMPBF suffix corresponds to the Tape and Reel packaging option as defined in the official datasheet ordering information. Confirm the 'I' grade designation indicates the industrial temperature range of -40°C to 85°C. Ensure the specific lot markings match the LTBPM identifier associated with this temperature grade and package type.

Programmable Timers And Oscillators Selection Notes

Select the LTC6905IS5-133 variant when a 133MHz master clock is required. Use the DIV pin configuration to achieve 66.7MHz (floating) or 33.3MHz (GND) if lower frequencies are needed. For designs requiring operation above 85°C, consider the LTC6905HS5-133 variant instead. Ensure power supply bypassing is placed immediately adjacent to the V+ and GND pins to maintain specified jitter and accuracy performance.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6905-XXX series of micropower silicon oscillators. Other members in this family include the LTC6905-100 (100MHz), LTC6905-96 (96MHz), and LTC6905-80 (80MHz). All variants share the same TSOT-23-5 footprint and functional block diagram, differing only in their factory-set master oscillator frequencies.

Programmable Timers And Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices marketing for alternate divider ratios or unlisted frequencies.