SIT9005ACU1G-25DF

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Programmable oscillators are electronic components that provide a stable, controllable oscillation within a predetermined frequency range. They use an integrated circuit (IC) with a control input that is used to adjust the oscillation frequency, often utilizing voltage or current as the control energy source. The SIT9005ACU1G-25DF is a programmable oscillator, and it is widely used in a variety of applications ranging from communications infrastructure and medical instrumentation to consumer electronics and industrial control systems.

The SIT9005ACU1G-25DF is a CMOS-based programmable oscillator, providing a stable and highly reliable oscillation frequency range between 1 MHz and 25 MHz. It features low power consumption, and is suitable for applications where the precision of a quartz oscillator is not required. This type of programmable oscillator can be easily integrated into a wide range of systems, requiring only a few external components for use. The device includes an adjustable frequency control pin and a wide range of input frequencies, allowing for very precise frequency control.

The main application field of the SIT9005ACU1G-25DF oscillator is its use as a frequency synthesizer for a variety of different system types, including but not limited to: radios and televisions, broadband communications systems such as Wi-Fi, Bluetooth and ZigBee, base stations, WiMax, LTE, CDMA and GSM cellular networks, industrial control systems, medical systems and RFID applications. Furthermore, it is also used in some low-frequency and high frequency transceivers.

The working principle of the SIT9005ACU1G-25DF is based on its use as an adjustable digital frequency synthesizer. This allows for direct digital control of the output frequency. It operates in a frequency division multiplexing mode, which takes the input signal frequency and then divides it into a lower-frequency parameter. This parameter can then be adjusted to provide a stable and reliable output frequency range with a minimum resolution of 1 Hz.

The output frequency of the SIT9005ACU1G-25DF is set by adjusting the control pin voltage or current, and is then stabilized by an on-chip voltage controlled oscillator and a divide-by-three circuit. Once the voltage or current is adjusted to the desired frequency level, the output frequency of the programmable oscillator is locked. Furthermore, it includes on-chip high-frequency EMI filter to reduce electromagnetic interference.

The SIT9005ACU1G-25DF is a cost-effective, easy to use, low-power and highly reliable programmable oscillator. It is suitable for a wide range of applications that require precise frequency control, and its high frequency range and minimum resolution make it an ideal choice for complex systems. With its adjustable digital frequency synthesizer and high-frequency EMI filter, this programmable oscillator provides excellent performance and reliable operation.

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