532EC000312DG

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Introduction to Pin Configurable/Selectable Oscillators

The ideal oscillator for a particular application must often be selected with precision. Different features such as frequency, stability, temperature stability, drive level, power consumption, size, configuration, and more must be considered. Pin Configurable/Selectable Oscillators can meet such application-specific requirements, and are specifically designed with flexibility as a main design criteria.

What are Pin Configurable/Selectable Oscillators?

Pin Configurable/Selectable Oscillators (PCS Oscillators) are oscillators that allow the user to select a precise output frequency by adjusting or “programming” a certain pin. Using a combination of resistor and/or capacitor selection, a precise output frequency can be programmed or selected during manufacturing or in the field. This allows users to quickly and easily program/select a specific frequency from a wide range of available frequencies, allowing a standard part number to be used in a variety of applications.

532EC000312DG Application Field and Working Principle

The 532EC000312DG is a Pin Configurable/Selectable Oscillator produced by the Standard Microsystems Corporation (SMC). This oscillator is designed to use an external resistor to select a target frequency and ranges from 25MHz to 35MHz at a rated temperature range of -55°C to +105°C.

The 532EC000312DG, like all PCS Oscillators, is an all-in-one package with all operating conditions and functions built into the device. The input voltage of the oscillator is a +3.3V, and it produces a TTL/CMOS compliant output. The 532EC000312DG supports both High and Low power modes, and its adjustable pull range of 30-90 ppm enables the oscillator to achieve tight frequency stability over its wide operating temperature range. The oscillator also supports Spread Spectrum Mode (SSM), and is qualified for use in industrial and automotive applications.

The 532EC000312DG has a specific working principle, based on its externally selectable resistor. The user sets an external resistor connected to the input pin, which changes the electric potential and current across the capacitor and the resistor in the circuit. This leads to an calculating equation: F = 1/ (2π √(CR)), with F as frequency, C as capacitance, and R as resistance. Through adjusting the resistance, frequency can be changed readily according to this equation. In this way, users are able to accurately tune the frequency of the 532EC000312DG.

Conclusion

Pin Configurable/Selectable Oscillators are an ideal solution for a variety of applications, allowing users to quickly and easily select a precise output frequency from a wide range. The 532EC000312DG is one such oscillator, allowing users to quickly and accurately set their output frequency up to 35MHz from a standard part number. The 532EC000312DG also offers a number of other advantages, such as its wide temperature range, low power consumption, and spread spectrum mode.

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