LTC6902CMS#TRPBF

Programmable Timers And Oscillators Overview

The LTC6902CMS#TRPBF is a precision silicon oscillator from Analog Devices featuring multiphase outputs and optional spread spectrum frequency modulation (SSFM). It operates on a single 2.7V to 5.5V supply with a typical current of 400mA at 3V/1MHz. The output frequency ranges from 5kHz to 20MHz, set by one external resistor (RSET), while SSFM spreading percentage is controlled by a second resistor (RMOD). Frequency error is typically ±1.5% at 25°C for the 5kHz–10MHz range. It provides 2-, 3-, or 4-phase CMOS outputs in a 10-lead MSOP package.

Programmable Timers And Oscillators Feature Summary

• Multiphase Outputs: Generates 2-, 3-, or 4-phase waveforms via programmable divider and phase selection pins.
• Spread Spectrum Modulation: Optional SSFM reduces peak EMI; spreading percentage is set by an external RMOD resistor.
• Single Resistor Frequency Setting: Output frequency is determined by a single RSET resistor connected between V+ and SET.
• CMOS Drivers: Features 100Ω CMOS output drivers capable of driving 5kΩ loads and 5pF capacitance.

Programmable Timers And Oscillators Applications

• Switching power supply clock references
• Portable and battery-powered equipment
• Clocking switched capacitor filters

Programmable Timers And Oscillators Procurement Notes

Verify the component matches the specific 'C' grade temperature rating (-40°C to 85°C) required for the application environment. Confirm the 10-lead MSOP package dimensions align with PCB footprint constraints. Ensure the ordering suffix '#TRPBF' corresponds to the tape and reel packaging format needed for assembly processes.

Programmable Timers And Oscillators Selection Notes

Select the LTC6902CMS#TRPBF when a low-component-count oscillator with multiphase capability is required. Use this part if design goals include reducing electromagnetic interference through spread spectrum modulation without external modulators. Verify that the required frequency range falls within the 5kHz to 20MHz specification and that the supply voltage remains between 2.7V and 5.5V.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6902 family of multiphase oscillators. The 'CMS' designation indicates the commercial temperature grade variant housed in a plastic MSOP package. The '#TRPBF' suffix specifies the lead-free tape and reel packaging configuration manufactured by Analog Devices.

Programmable Timers And Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices for cross-reference information regarding alternative oscillators with similar multiphase and SSFM capabilities.