LTC6908IS6-1

Programmable Timers And Oscillators Overview

The LTC6908IS6-1 is a precision silicon oscillator from Analog Devices, housed in a 6-lead TSOT-23 package. It provides two complementary outputs shifted by 180 degrees. The frequency is set by a single external resistor (RSET) ranging from 10k to 2M, covering an output range of 50kHz to 10MHz at a 5V supply. It operates on a single 2.7V to 5.5V supply with typical current consumption of 400µA at 50kHz. Key features include optional spread spectrum frequency modulation (SSFM) for improved EMC, ±40ppm/°C temperature stability, and fast start-up time.

Programmable Timers And Oscillators Feature Summary

• Dual complementary outputs (0°/180° phase shift)
• Frequency programmable via single external resistor (50kHz to 10MHz)
• Spread spectrum frequency modulation (SSFM) with fixed ±10% spreading
• Low power consumption: 400µA typical at 5V, 50kHz

Programmable Timers And Oscillators Applications

• Switching power supply clock reference
• Precision programmable oscillator circuits
• Charge pump driver applications
• Portable and battery-powered equipment

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRPBF or #TRMPBF determines the tape and reel packaging quantity. Confirm the IS6 grade corresponds to the –40°C to 85°C specified temperature range required for the design environment. Ensure the ordering information matches the exact pin configuration and lead finish specifications provided in the manufacturer's documentation.

Programmable Timers And Oscillators Selection Notes

Select the LTC6908IS6-1 when complementary 180-degree phase outputs are required, as opposed to the LTC6908IS6-2 which provides quadrature outputs. Choose this component over other oscillators if spread spectrum modulation is needed to reduce peak electromagnetic interference. Ensure the RSET resistor value allows operation within the guaranteed accuracy limits for the chosen supply voltage and frequency range.

Programmable Timers And Oscillators Part Context

This part belongs to the LTC6908 family of resistor-set silicon oscillators. The 'I' suffix denotes the industrial temperature grade (–40°C to 85°C), while 'S6' indicates the 6-lead plastic TSOT-23 package. The '-1' designation specifies the version with complementary outputs, distinguishing it from the '-2' variant which offers quadrature outputs.

Programmable Timers And Oscillators Replacement Considerations

Direct functional substitutes within the same package and specification profile include the LTC6908CS6-1 (commercial grade) and LTC6908HS6-1 (extended/high-temperature grade). These parts share identical electrical characteristics and pinouts but differ in their specified operating temperature ranges.