SIT3809AI-2-28NB

Programmable Oscillators

Programmable oscillators are oscillators whose frequency is adjustable by a programmable frequency control. They are usually software-programmable, allowing users to change frequency stability, degree of resolution, phase matching and pulse frequency. The SIT3809AI-2-28NB is a programmable oscillator specifically designed for communications applications, such as WLAN and Bluetooth, WiMax, and low voltage power supply applications.

Applications

SIT3809AI-2-28NB is primarily used for applications in communications such as Wi-Fi, Bluetooth, and WiMax. It is also useful for low voltage power supplies and for systems with high-voltage, high-current applications. It is ideal for applications that require low power consumption and low temperatures. In addition, it is suitable for long-term reliable operation since it is highly resistant to aging.

Working Principle

The SIT3809AI-2-28NB operates on a PLL (Phase Locked Loop) principle. In this type of oscillator, an incoming signal is used to “lock” the output frequency of the oscillator, maintaining a certain level of accuracy and stability. The oscillator uses a voltage-controlled tuning circuit which is driven by PWM (Pulse Width Modulation) technique.

The PWM technique divides the input signal into a series of electrical pulses. Then, the voltage-controlled tuning circuit modulates the output frequency according to these pulses. This technique is used for variable frequency control, allowing the SIT3809AI-2-28NB to have a wide range of frequencies from 600kHz to 2.5GHz. It also allows the oscillator to have an accuracy up to 0.1ppm (parts-per-million).

The SIT3809AI-2-28NB is a programmable oscillator specifically designed for communications applications, such as WLAN and Bluetooth, WiMax, and low voltage power supply applications. It is based on a PLL (Phase Locked Loop) principle and uses a voltage-controlled tuning circuit to produce output frequencies ranging from 600 kHz to 2.5GHz with a high accuracy of up to 0.1ppm. It also offers low power consumption and low temperature operation, making it suitable for long-term reliable operation.