SIT9005ACU2H-25NM

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Programmable Oscillators are highly integrated, resonant and crystal or ceramic oscillators that have a programmable center frequency. They are gain-and-phase matched and are typically used in systems where conditions may cause information to become distorted, such as in digital and mixed-signal applications. They offer flexibility, accuracy, and reliability, which enables them to be used in a wide variety of applications.

One example of a programmable oscillator is SIT9005ACU2H-25NM, which provides a high level of integration, phase and gain matching, and output power control. This oscillator is designed to help reduce electromagnetic interference (EMI), making it well suited for applications such as radio frequency identification (RFID) systems, wireless communication systems, GPS receivers, and other systems that rely on accurate frequency control.

The SIT9005ACU2H-25NM is a CMOS oscillator that integrates a series of programmable components on a single chip. This includes a voltage-controlled oscillator (VCO) that can be configured to achieve the desired center frequency, as well as amplifiers to control output power, an input port to control the frequency range, and a control interface for programming. The chip offers frequency stability of 1ppm over the temperature range of -40°C to 125°C, with a maximum frequency accuracy of ±1 ppm. It also offers excellent phase and gain matching, which helps to reduce radio frequency interference (RFI).

In terms of application field, the SIT9005ACU2H-25NM may be used in a variety of applications. Some examples include cellular networks, RFID systems, GPS receivers, wireless local area networks (WLANs), and other systems that require high-precision frequency control.

The working principle behind the SIT9005ACU2H-25NM is relatively simple. When the voltage controlled oscillator (VCO) is powered on, the oscillation frequency is determined by the programming in the internal register. The output power is then regulated by the amplifier, and the frequency is adjusted by the input port. The whole system is digitally controlled and has a regulated power output.

In summary, SIT9005ACU2H-25NM is an example of a programmable oscillator with a high level of integration and excellent frequency control. It offers benefits such as high frequency stability and accuracy, phase and gain matching for improved interference reduction, and excellent power control. Furthermore, it is suitable for a wide range of applications, including cellular networks, RFID systems, GPS receivers, and more.

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