LTC6990CS6#TRPBF

Programmable Timers And Oscillators Overview

The LTC6990CS6#TRPBF is a precision silicon oscillator from the TimerBlox family, offering programmable frequency operation from 488Hz to 2MHz. It functions as either a fixed-frequency or voltage-controlled oscillator (VCO). The device utilizes a single external resistor at the SET pin to program the internal master oscillator frequency, which is then divided by an internal divider (NDIV) selectable via the DIV pin. Key electrical parameters include a supply voltage range of 2.25V to 5.5V and a typical supply current of 235µA at 5.5V with NDIV=1. The output provides CMOS logic levels capable of sourcing or sinking 20mA.

Programmable Timers And Oscillators Feature Summary

• Programmable frequency range from 488Hz to 2MHz using a single resistor
• CMOS output capable of sourcing/sinking 20mA with 50% duty cycle square wave
• Voltage-controlled oscillator (VCO) mode with linear frequency control
• Selectable output enable state: high impedance or forced low when disabled

Programmable Timers And Oscillators Applications

• Voltage-Controlled Oscillator circuits
• Replacement for fixed crystal and ceramic oscillators
• Portable and battery-powered equipment requiring low power consumption
• High vibration and high acceleration environments

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRPBF indicates standard tape and reel packaging rather than mini-tape (#TRMPBF). Confirm the 'C' grade designation corresponds to the 0°C to 70°C operating temperature range required for the application. Ensure compatibility with the 6-lead TSOT-23 package dimensions during PCB layout.

Programmable Timers And Oscillators Selection Notes

Select this component when a precision, low-power silicon oscillator is needed to replace discrete timing components. The CS6 variant is suitable for commercial temperature ranges (0°C to 70°C). For automotive applications, verify if AEC-Q100 qualified versions with the '#W' suffix are required. Consider the NDIV settings to balance between start-up time, jitter performance, and supply current consumption.

Programmable Timers And Oscillators Part Context

The LTC6990CS6#TRPBF belongs to the TimerBlox family of versatile silicon timing devices manufactured by Analog Devices Inc. It shares core functionality with other grades in the series, such as the IS6 (–40°C to 85°C) and HS6 (–40°C to 125°C), differing primarily in specified operating temperature ranges and qualification standards. The S6 package denotes the 6-lead plastic TSOT-23 form factor.

Programmable Timers And Oscillators Replacement Considerations

Direct functional equivalents within the same package and specification include the LTC6990IS6#TRPBF and LTC6990HS6#TRPBF, provided the wider temperature ranges are acceptable. Verify that any substitute maintains the 6-lead TSOT-23 footprint and identical pinout configuration.