578S260IAT Crystals, Oscillators, Resonators

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Oscillators: 587S260IAT Application field and Working Principle

Oscillators are widely used for the production of electronic signals at a specific frequency range. Oscillators can be classified into two types: Frequency Dependent Oscillators (FDOs) and Frequency Independent Oscillators (FIs). FDOs rely on an active device to control the frequency at which the signal is generated, while FIs rely on a passive feedback element. One of the most advanced oscillator technologies is the 587S260IAT, developed by Texas Instruments.

The 587S260IAT is an oscillator that combines both frequency dependent and frequency independent elements. This oscillator technology has a wide variety of applications including signal source for surveillance systems, radio signal generation, and synthesizers. It has an extraordinarily wide range of frequencies (2.2-12.4GHz) and is highly efficient. This makes the 587S260IAT a prime choice for many RF applications.

The working principle of the 587S260IAT involves a combination of phase-locked loop (PLL) and voltage-controlled oscillator (VCO) circuits. The PLL is a closed-loop circuit that helps maintain a constant frequency of oscillation by “locking” onto the input frequency. The PLL’s output is then coupled with an adjustable resistive-capacitive (RC) network, which is used to determine the device’s center frequency. This adjustable RC network, combined with the PLL, adjusts the frequency of oscillation over a wide range and produces highly accurate frequency control.

The second component of the 587S260IAT is the VCO. The VCO takes the output of the PLL and amplifies it and tunes it to match the desired output frequency. This is achieved using an on-chip amplifier circuit and an external capacitive element. The VCO circuit alters the output transistor’s resistance according to the desired frequency and adjusts the amplitude and phase of the signal.

The 587S260IAT also utilizes a special “clock-splitting” technique that enables the device to produce two frequencies from one input. This clock-splitting technique allows the device to produce two output frequencies whose phase can be adjusted independently. This feature is particularly useful in applications such as component testing and radio signal synthesis.

In conclusion, the 587S260IAT oscillator technology combines the best of both frequency independent and frequency dependent elements to achieve a wide range of operating frequencies and extremely precise frequency control. This makes the 587S260IAT an ideal choice for applications such as radio signal generation and component testing.

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