LTC6905CS5-96#TRPBF

Programmable Timers And Oscillators Overview

The LTC6905CS5-96#TRPBF is a fixed frequency silicon oscillator from Analog Devices, operating at a master frequency of 96MHz. It provides three selectable output frequencies (96MHz, 48MHz, and 24MHz) via an internal three-state divider controlled by the DIV pin. The device features a typical frequency accuracy of ±0.5% at 25°C and operates on a single supply voltage ranging from 2.7V to 5.5V. Packaged in a low-profile 1mm ThinSOT SOT-23-5, it includes an Output Enable (OE) pin for synchronous control and delivers a CMOS square wave output with a typical rise time of 0.5ns.

Programmable Timers And Oscillators Feature Summary

• Factory-programmed fixed frequency of 96MHz with internal divide-by-1, 2, or 4 options.
• High frequency accuracy: ±0.5% typical at 25°C; ±1.5% over the commercial temperature range (0°C to 70°C).
• Low profile 1mm ThinSOT SOT-23-5 package designed to minimize board space.
• Includes Output Enable (OE) pin for synchronous output control to prevent 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 where board space is limited.

Programmable Timers And Oscillators Procurement Notes

Verify the ordering suffix #TRPBF indicates lead-free tape and reel packaging. Confirm the 'C' grade designation corresponds to the specified commercial temperature range of 0°C to 70°C. Ensure the specific model number matches the required 96MHz master frequency configuration before procurement.

Programmable Timers And Oscillators Selection Notes

Select this part when a precise, fixed frequency source is needed without external trimming components. The CS5 variant is suitable for commercial applications requiring operation between 0°C and 70°C. For wider temperature ranges, consider the IS5 (-40°C to 85°C) or HS5 (-40°C to 125°C) variants. Ensure the load capacitance does not exceed limits that would degrade rise times based on the output resistance at the chosen supply voltage.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6905-XXX series of precision silicon oscillators. The family includes models programmed for 133MHz, 100MHz, 96MHz, and 80MHz master frequencies. All variants share the same SOT-23-5 package and functional architecture, differing primarily in their factory-set oscillation frequency and associated temperature grades.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements within the same family include LTC6905IS5-96#TRPBF for extended temperature range or LTC6905HS5-96#TRPBF for high-temperature operation. Other frequencies in the series (LTC6905-133, -100, -80) are functionally compatible but provide different base frequencies.

Programmable Timers And Oscillators FAQ

How is the output frequency selected?

The output frequency is determined by the state of the DIV pin (Pin 4). Tying DIV to V+ selects ÷1 (96MHz), leaving it floating selects ÷2 (48MHz), and tying it to GND selects ÷4 (24MHz).

What is the start-up time of the oscillator?

The typical start-up and settling time to within 1% of the final frequency is 100µs.

Can the OE pin disable the output asynchronously?

Yes, pulling the OE pin low disables the output immediately. Pulling it high enables the output synchronously on the next low-to-high clock transition to avoid pulse slivers.