LTC6905CS5#TRMPBF

Programmable Timers And Oscillators Overview

The LTC6905CS5#TRMPBF is a precision, programmable silicon oscillator manufactured by Analog Devices Inc. It generates output frequencies ranging from 17MHz to 170MHz using a single external resistor (RSET) connected between the V+ and SET pins. The device operates on a single supply voltage of 2.7V to 5.5V and features a CMOS output driver capable of rail-to-rail switching with fast rise/fall times. An internal three-state divider allows frequency division by 1, 2, or 4 via the DIV pin. The component is housed in a low-profile 5-lead plastic SOT-23 package and is specified for operation within a temperature range of 0°C to 70°C.

Programmable Timers And Oscillators Feature Summary

• Frequency Range: 17MHz to 170MHz set by a single resistor (10kΩ to 25kΩ).
• High Precision: Typical frequency error of ±0.5% at 25°C; ±2.2% over the full operating temperature range.
• Low Power Consumption: Typical supply current of 6mA at 100MHz; up to 14mA at 170MHz.
• Fast Start-Up: Typical start-up time of 100μs.

Programmable Timers And Oscillators Applications

• High-speed data bus clock generation.
• Replacement for fixed crystal oscillators.
• Replacement for ceramic oscillators.

Programmable Timers And Oscillators Procurement Notes

Verify that the specific ordering suffix #TRMPBF corresponds to the mini tape and reel packaging configuration containing 500 pieces as defined in the manufacturer's order information table. Confirm that the 'C' grade designation aligns with the required 0°C to 70°C operating temperature specification for the target application environment.

Programmable Timers And Oscillators Selection Notes

Select this part when a resistor-set oscillator is preferred over fixed-frequency variants to allow for frequency tuning during design. Ensure the external RSET value remains between 10kΩ and 25kΩ to maintain optimal performance. Consider the DIV pin configuration to achieve the desired frequency range, noting that higher divide ratios reduce jitter but increase supply current slightly.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6905 family of silicon oscillators, which are designed to minimize board space while providing high accuracy. The CS5 variant specifically denotes the commercial temperature grade (0°C to 70°C) and the SOT-23-5 package. It serves as a flexible alternative to fixed-frequency oscillators, offering programmability through an external resistor without requiring complex programming interfaces.

Programmable Timers And Oscillators Replacement Considerations

For applications requiring extended temperature ranges, consider the LTC6905IS5#TRMPBF (-40°C to 85°C) or LTC6905HS5#TRMPBF (-40°C to 125°C). For fixed-frequency requirements eliminating the need for an external resistor, review the LTC6905-XXX series datasheet.