AP3S3ER

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Programmable Oscillators refer to electronic oscillators that are configurable manually or automatically by changing certain circuit parameters. These parameters could be the strength of capacitors, type of amplifier, or any other property or characteristic used to alter the fundamental frequency or output shape of a given oscillator. A widely used type of Programmable Oscillators is the AP3S3ER.

The AP3S3ER is a wideband programmable oscillator that operates over a frequency range of 5kHz to 1GHz and is suitable for a variety of analog applications. Built around the Analog Devices ADE0405/AFM3296 driven architecture, the AP3S3ER offers a linear-in-dB tuning function, enabling a small part count and size. The frequency range, excellent spectral performance, and low power consumption of the AP3S3ER make it ideal for both low-cost general-purpose and high-performance networking applications.

The main advantages of the AP3S3ER application field include its wideband frequency range that extends through a frequency range of 5kHz to 1GHz, its excellent spectral performance, its small size and low power consumption, and its linear-in-dB tuning function. These features make it well-suited for wireless communications, digital signal processing (DSP) applications, frequency hopping and spread spectrum applications, test equipment and instrumentation, portable radio applications, and timing applications.

In terms of working principle, the AP3S3ER is based around the Analog Devices ADE0405/AFM3296 driven architecture, which utilizes an amplifier and varactors, as well as a voltage variable capacitor (VVC). The amplifier is used to provide signal gain and to set the center frequency, while the varactors are used to control the signal frequency by modulating the applied AC voltage. The VVC, in combination with the amplifier, is used to provide a linear-in-dB tuning function, thereby eliminating the need for additional components. In addition, the AP3S3ER features an operation voltage range of 3.3V to 5.5V as well as a frequency stabilization of ±50ppm over temperature.

In conclusion, the AP3S3ER application field and working principle make it a versatile solution for a wide variety of applications requiring a programmable oscillator. It offers an optimal combination of wideband frequency range, excellent spectral performance, small size, low power consumption, and linear-in-dB tuning. As such, it is well-suited for wireless communications and portable radio applications, among other applications.

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