LTC6905HS5-133#TRPBF

Programmable Timers And Oscillators Overview

The LTC6905HS5-133#TRPBF is a fixed frequency silicon oscillator from Analog Devices, operating at a master frequency of 133MHz. It provides three selectable output frequencies (133MHz, 66.7MHz, and 33.3MHz) via an internal three-state divider controlled by the DIV pin. The device features a typical frequency accuracy of ±0.5% and a temperature stability of ±20ppm/°C. It operates on a single supply voltage ranging from 2.7V to 5.5V with a typical supply current of 10mA at 133MHz. The output is CMOS, capable of driving loads up to 600Ω, with a typical rise time of 0.5ns. The component is housed in a low-profile 1mm ThinSOT package.

Programmable Timers And Oscillators Feature Summary

• Fixed Frequency: Factory-programmed for 133MHz master clock with divide-by-1, 2, or 4 options.
• High Accuracy: Typical frequency error of ±0.5% at 25°C; ±2.3% over the -40°C to 125°C range.
• Low Jitter: Typical timing jitter less than 0.8%.
• Output Control: Includes an Output Enable (OE) pin for synchronous enable/disable 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

Programmable Timers And Oscillators Procurement Notes

Verify the ordering suffix #TRPBF indicates Lead-Free Tape and Reel packaging. Confirm the HS5 suffix corresponds to the High Temperature grade (-40°C to 125°C). Ensure the specific part number matches the required 133MHz frequency setting. Check for RoHS compliance status as indicated in the datasheet order options.

Programmable Timers And Oscillators Selection Notes

Select this part when a fixed 133MHz source is required without external trimming components. Choose the H-grade variant if operation above 85°C is necessary, as it supports temperatures up to 125°C. Consider the divide ratios (÷1, ÷2, 〉÷4) if lower frequencies like 66.7MHz or 33.3MHz are needed. Ensure power supply noise is minimized to maintain jitter specifications.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6905-XXX series of precision fixed frequency silicon oscillators. The '133' in the model name specifies the master oscillator frequency. The 'H' denotes the extended temperature range grade. It serves as a compact alternative to traditional crystal oscillators, offering similar performance in a smaller SOT-23-5 package.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements include other members of the LTC6905 family such as LTC6905IS5-133#TRPBF (Industrial grade) or LTC6905CS5-133#TRPBF (Commercial grade), provided the temperature requirements allow. For different frequencies, consider LTC6905-100, LTC6905-96, or LTC6905-80 variants within the same package.