SIT9003AC-2-18DQ

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Programmable Oscillators

Programmable oscillators are electronic components that are used to generate an accurate and stable frequency. These oscillators are used in many circuits and applications as they are a cost-effective and accurate solution for frequency-centric tasks. The SIT9003AC-2-18DQ is a programmable oscillator designed for cost-sensitive systems requiring low power consumption with clock accuracy and low frequency jitter. It is a low power voltage controlled crystal oscillator (VCXO) with an integrated crystal and can be used in high-data rate communication systems such as Ethernet, Wi-Fi, Bluetooth, and GPS. This article will discuss the application fields and working principle of the SIT9003AC-2-18DQ.

Application Field

The SIT9003AC-2-18DQ can be used in a variety of applications due to its low power consumption and clock accuracy. It is ideal for systems that require high-data rates and frequent frequency changes. The programmable oscillator is well suited for high-speed Ethernet communications, telecommunication systems, satellite receivers, USB, and other consumer-oriented applications. The SIT9003AC-2-18DQ is also suitable for medical, industrial, consumer and security applications.

The oscillator has a wide operating range and supports frequencies from 2MHz to 18MHz. The VCXO can be programmed with a wide range of pullability ranging from +/-500ppm to +/-50ppm. The accuracy is ±8 ppm over the -20°C to 70°C temperature range and the operating voltage is 1.8-3.3V.

Working Principle

The SIT9003AC-2-18DQ uses a voltage controlled crystal oscillator (VCXO) design. VCXOs are used to generate accurate and stable clock signals and are highly adjustable. VCXOs consist of an internal crystal that has its frequency adjusted by applying a voltage. The crystal is designed to be sensitive to changes in the applied voltage and can be adjusted to the desired frequency with a small voltage range. The SIT9003AC-2-18DQ can be programmed with a wide range of pullability from +/-500ppm to +/-50ppm.

The oscillator also features programmable amplitude control. This is a feature that allows users to adjust the amplitude of the output signal from 0.3V to 1.8V. This is useful when the output signal needs to be adjusted to meet compatibility requirements in different systems.

The programmable oscillator also has an integrated crystal that helps ensure stable and accurate signal generation. The crystal is unipolar and operates at a temperature range of -20°C to 70°C with a stability of ±8 ppm. This ensures that the signal generated has a high degree of accuracy and stability, even with frequent frequency changes.

The SIT9003AC-2-18DQ is also low power, with a typical power consumption of only 4 mW. This makes it an ideal choice for battery powered applications. The programmable oscillator also has a maximum operating temperature of 85°C, allowing it to be used in a wide variety of applications.

The SIT9003AC-2-18DQ is designed for cost-sensitive systems requiring low power consumption with clock accuracy and low frequency jitter. Its wide operating range, reliability, low power consumption, and programmable pullability make it an ideal choice for high-data rate applications such as Ethernet, Wi-Fi, Bluetooth and GPS.

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