LTC6905IS5#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Oscillator, Silicon
Count:	--
Frequency:	17MHz ~ 170MHz
Voltage - Supply:	2.7 V ~ 5.5 V
Current - Supply:	14mA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Supplier Device Package:	TSOT-23-5
Mounting Type:	Surface Mount
Base Part Number:	LTC6905

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Introduction
The LTC6905IS5#TRPBF is a programmable timer and oscillator with a versatile range of uses. It is capable of operating as a single-ended or differential input/output digital frequency control, as well as an adjustable voltage divider. It can be used for applications such as frequency control, dividing and range extension, power supply sequencing and tracking, synchronization, and time-based functions. It is available in a wide range of supply voltages, frequencies, and input/output waveforms, making it suitable for a variety of applications.

Application Field
The versatility of the LTC6905IS5#TRPBF is its strong suit, as it can be used for a variety of applications. It can be used in frequency control, dividing and range extension, power supply sequencing and tracking, synchronization, and time-based functions. It is suitable for a variety of control, synchronization, and monitoring tasks as it has a wide operating temperature range and can be programmed to operated with any combination of input/output waveforms.

The wide range of supply voltage options available for the LTC6905IS5#TRPBF make it a great choice for mobile applications, as it can operate from 5V up to 36V, allowing it to be powered by the onboard battery of mobile devices. It is also suitable for harsh environments thanks to its wide -40°C to +85°C operating-temperature range.

Working Principle
The LTC6905IS5#TRPBF is based on a novel architecture which allows for a hybrid combination of conventional oscillator and digital frequency control principles. It combines an analog ramp generator and a rapid, precise digital-frequency control device with a three-digit up/down counter and synchronization circuitry. The frequency is programmed by the user with three external resistor/capacitor (RC) values as shown in the figure below.



The RC values determine the frequency and duty cycle of the ramp generator, which then modulates the output waveform. The ramp generator is then linked to the three-digit up/down counter which is synchronized to the output, allowing the user to set the cycle time. The output waveform can also be synchronized to a low-frequency external clock source, allowing synchronization to other systems. The LTC6905IS5#TRPBF also features optional active-low and active-high clocks, allowing it to be used as a programmable timer with a wide range of frequencies, duty cycles, and functions.Conclusion
The LTC6905IS5#TRPBF is a versatile and reliable programmable timer and oscillator. It features a wide range of supply voltages, frequencies, and input/output waveforms, making it suitable for a variety of applications, including frequency control, dividing and range extension, power supply sequencing and tracking, synchronization, and time-based functions. Its unique hybrid architecture allows for precise and rapid digital frequency control, and its wide operating temperature range make it suitable for harsh environments and mobile applications. With its versatility, reliability, and easy-to-use interface, the LTC6905IS5#TRPBF is a great choice for any frequency control, synchronization, or time-based function.

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