LTC6990HS6#TRPBF

Series:	TimerBlox®
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Oscillator, Silicon
Count:	--
Frequency:	488Hz ~ 1MHz
Voltage - Supply:	2.25 V ~ 5.5 V
Current - Supply:	235µA
Operating Temperature:	-40°C ~ 125°C
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Supplier Device Package:	TSOT-23-6
Mounting Type:	Surface Mount
Base Part Number:	LTC6990

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Introduction
The LTC6990HS6#TRPBF is a programmable oscillator and timer from Linear Technology, part of the comprehensive range of timing and synchronization products. Providing extended temperature ranges and shock/vibration immunity, the oscillator is suitable for meeting a variety of needs in automotive, telecommunications and industrial applications. Combining an accurate timing interval generator with an oscillator and clock synthesizer, the LTC6990HS6#TRPBF offers an innovative and robust solution for the design of both small and large systems.Application Field
The LTC6990HS6#TRPBF can be used in a range of embedded timing applications such as frequency hopping, pulse-width modulation control, precision timing intervals and pulse/count logic functions. As a sophisticated timing and clock generation capabilities, the programmable oscillator is also suitable for safety management, product authentication and diagnostic functions. Typical applications include power-supply sequencing on intelligent boards, handheld device actuations and displays, as well as transmitter feedback in radios, sensors and navigational systems.Features and Benefits
The LTC6990HS6#TRPBF is capable of outputting a range of frequencies from 1Hz up to 800MHz, providing exceptional flexibility for timing, frequency synthesis and control applications. It is based on a programmable digital oscillator and timer, which is complemented by a powerful combination of internal processing, true random number generator and multiplexer. It offers a wide range of features and benefits, such as:• High-speed programmability, allowing frequencies up to 800MHz to be generated while maintaining ±0.2% clock generation accuracy• A wide dynamic-frequency range, allowing the LTC6990HS6#TRPBF to be used in both low and high-speed applications• An integrated data storage and output, allowing information to be retrieved from the device in parallel format• Fault-protection allows for maximum security, with the ability to detect a fault and switch over to an emergency channel for critical processes • Integrated thermal management ensures the device can withstand extreme temperature variationsWorking Principle
The LTC6990HS6#TRPBF consists of four main functional blocks: a phase-locked loop (PLL), a control logic block, a phase delay and a programmable frequency synthesizer. The PLL is used to provide a stable clock to the system. The phase delay block is used to control the phase difference between the input and the output signal. The programmable frequency synthesizer then takes the PLL output and generates the desired frequency, based on the programmed values, which can be of any arbitrary value in the range of 1Hz to 800MHz. The control logic block provides the signal/data interface between the PLL and the frequency synthesizer, and is also used to configure the frequency synthesizer. This configuration is then used by the frequency synthesizer to ensure the desired frequency is generated. Conclusion
The LTC6990HS6#TRPBF offers a unique and highly flexible solution for embedded timing and synchronization applications. With its extended temperature range, high-speed programmability and fault-protection capabilities, it is ideal for use in a wide range of automotive, telecommunications and industrial systems. Featuring an accurate timing interval generator, an oscillator and clock synthesizer, as well as intelligent thermal-management capabilities, the LTC6990HS6#TRPBF is an innovative and robust choice for precision timing and control tasks.

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