LTC6930IMS8-8.19#PBF

Programmable Timers And Oscillators Overview

The LTC6930IMS8-8.19#PBF is a precision silicon oscillator from Analog Devices, operating within the –40°C to 85°C temperature range. It provides a nominal master frequency of 8.192MHz with an initial accuracy of ±0.09% at 25°C. The device supports output frequencies ranging from 32.768kHz to 8.192MHz via internal dividers (÷1 to ÷128) controlled by DIVA, DIVB, and DIVC pins. It operates on a single 1.7V to 5.5V supply, consuming typical currents between 190µA and 500µA depending on voltage and divider settings. Packaged in an 8-lead MSOP, it features fast start-up times under 110µs and low jitter specifications.

Programmable Timers And Oscillators Feature Summary

• Precision Frequency Accuracy: Initial error less than 0.09% at 25°C; drift over temperature is 0.0001%/°C for MS8 package.
• Low Power Consumption: Typical supply current ranges from 190µA to 500µA at V+ = 3V, enabling operation from single-cell batteries.
• Fast Start-Up Time: Output stabilizes within 110µs of power application, holding output low during initialization to prevent glitches.
• Digital Frequency Control: Internal binary dividers (1 to 128) allow selection of 8 distinct output frequencies based on master oscillator settings.

Programmable Timers And Oscillators Applications

• Microprocessor Clock Generation
• Portable and Battery Operated Devices
• Power Supply Clocking

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance as per manufacturer standards. Confirm the IMS8 designation corresponds to the industrial temperature grade (-40°C to 85°C) and MSOP package type. Ensure ordering documentation matches the exact part number to avoid confusion with DFN packages or other temperature grades like CMS8 or HMS8.

Programmable Timers And Oscillators Selection Notes

Select this component when a fixed-frequency clock source is required without external resonators. Choose the -8.199 variant if the base master frequency of 8.192MHz aligns with system timing requirements. Verify that the load capacitance does not exceed 50pF to maintain specified current consumption and signal integrity. Consider the MSOP package dimensions for PCB layout constraints compared to the smaller DFN option.

Programmable Timers And Oscillators Part Context

This part belongs to the LTC6930 family of µPower oscillators, which includes variants with different master frequencies (4.19MHz, 5.00MHz, 7.37MHz, 8.00MHz). The IMS8-8.19#PBF specifically utilizes the 8.192MHz master oscillator configuration housed in an 8-lead plastic MSOP package suitable for surface-mount assembly.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-compatible replacements include other temperature grades of the same package such as LTC6930CMS8-8.19#PBF (Commercial, 0°C to 70°C) or LTC6930HMS8-8.19#PBF (High Temp, -40°C to 125°C), provided the thermal environment permits. Cross-package substitution with DCB (DFN) variants requires schematic modification due to pinout differences.