LTC6908HS6-2#WTRMPBF

Programmable Timers And Oscillators Overview

The LTC6908HS6-2#WTRMPBF is a spread spectrum silicon oscillator from Analog Devices, housed in a 6-lead plastic TSOT-23 package. It provides two quadrature outputs (0°/90° phase shift) with CMOS square wave signals. The frequency range spans 50kHz to 10MHz, programmed via a single external resistor (RSET). Key electrical parameters include a supply voltage of 2.7V to 5.5V, typical supply current of 400µA at 50kHz, and maximum frequency accuracy of ±1.5% at 25°C. The device features optional spread spectrum frequency modulation (SSFM) with fixed ±10% spreading for improved EMC performance.

Programmable Timers And Oscillators Feature Summary

• Dual Output Configuration: Provides quadrature outputs (LTC6908-2 variant) shifted by 90 degrees.
• Spread Spectrum Modulation: Fixed ±10% frequency spreading using pseudorandom noise to reduce peak EMI.
• Resistor Programming: Frequency set by a single external resistor (RSET) ranging from 10kΩ to 2MΩ.
• Automotive Grade: Qualified under AEC-Q100 standards with an operating temperature range of –40°C to 125°C.

Programmable Timers And Oscillators Applications

• Switching Power Supply Clock Reference
• Portable and Battery-Powered Equipment
• Charge Pump Driver
• Precision Programmable Oscillator

Programmable Timers And Oscillators Procurement Notes

Verify the automotive qualification suffix (#W) and tape-and-reel packaging (#TRMPBF) against specific project requirements. Confirm that the HS6 temperature grade (–40°C to 125°C) meets environmental specifications. Ensure the quadrature output configuration (LTC6908-2) aligns with system timing needs compared to complementary variants.

Programmable Timers And Oscillators Selection Notes

Select this component when quadrature clock signals are required for multi-phase regulator synchronization. The HS6 grade is necessary for high-temperature environments up to 125°C. Verify RSET values to ensure operation within the guaranteed accuracy limits, particularly if frequencies exceed 5MHz or supply voltages drop below 4V.

Programmable Timers And Oscillators Part Context

This part belongs to the LTC6908 family of resistor-set oscillators. The 'HS6' designation indicates the high-temperature (-40°C to 125°C) version in the TSOT-23 package. The '-2' suffix specifies the quadrature output phase relationship, distinguishing it from the LTC6908-1 which offers complementary (180°) outputs.

Programmable Timers And Oscillators Replacement Considerations

Direct functional substitutes within the same package and specification profile include the LTC6908IS6-2#WTRMPBF for commercial temperature grades. For complementary outputs instead of quadrature, consider the LTC6908HS6-1#WTRMPBF. DFN package equivalents like the LTC6908IDCB-2 offer similar functionality in a different footprint.