LTC6900CS5#TRPBF

Programmable Timers And Oscillators Overview

The LTC6900CS5#TRPBF is a low-power, precision silicon oscillator in a 5-lead TSOT-23 package. It generates frequencies from 1kHz to 20MHz using a single external resistor (RSET) and a three-state DIV input for division by 1, 10, or 100. Operating on a 2.7V to 5.5V supply, it draws typically 500µA at 3V. The device provides a rail-to-rail CMOS output with fast rise/fall times and high accuracy (≤1.5% error). Its proprietary feedback loop linearizes the RSET-to-frequency relationship, simplifying design calculations.

Programmable Timers And Oscillators Feature Summary

• Frequency range of 1kHz to 20MHz set by one external resistor
• High accuracy with frequency error ≤1.5% max at 25°C
• Low power consumption: typically 500µA at 3V
• Rail-to-rail CMOS output driver with 100Ω impedance

Programmable Timers And Oscillators Applications

• Portable and battery-powered equipment
• PDAs and cell phones
• Switching power supply clock reference
• Fixed crystal oscillator replacement

Programmable Timers And Oscillators Procurement Notes

Verify the suffix #TRPBF indicates tape and reel packaging and lead-free finish. Confirm the CS5 variant meets the -40°C to 85°C operating temperature range requirements for the specific application environment.

Programmable Timers And Oscillators Selection Notes

Select the appropriate divider setting (DIV pin state) to optimize accuracy and power; lower master oscillator frequencies are preferred. Ensure RSET values remain between 10kΩ and 2MΩ for guaranteed performance. Check that load capacitance does not exceed 10pF to maintain jitter specifications.

Programmable Timers And Oscillators Part Context

This component belongs to the LTC6900 family of resistor-set silicon oscillators. It serves as a compact alternative to traditional crystal oscillators, offering programmable frequency within a fixed range without requiring external trim components or complex calibration circuits.

Programmable Timers And Oscillators Replacement Considerations

The LTC1799 offers identical pinout but supports higher frequency operation up to 30MHz. Other members of the LTC6900 series may provide different temperature grades or packaging options.