SIT9120AC-1B3-33E133.330000D

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Oscillators

Oscillators are electronic circuits that generate periodic signals, usually in the form of sine, triangle and/or square waves. These signals are used in applications which require a fixed interval repetition, such as communication systems, computers, audio systems, measurement and control systems, and consumer electronics. Oscillators are available in various technologies such as Analog, Digital, and Hybrid. SIT9120AC-1B3-33E133.330000D is an example of a hybrid oscillator.

SIT9120AC-1B3-33E133.330000D

The SIT9120AC-1B3-33E133.330000D is a hybrid oscillator developed by SITronix Technology Corporation. This oscillator is a high-performance surface-mount device designed for low-cost, low-voltage, and low-power applications. It functions as a highly accurate clock oscillator providing a stable voltage-controlled clock output. It is ideal for use in low-power embedded applications such as cellphone baseband, digital TVs, DTV (digital television), digital still cameras, portable and automotive audio systems.

Applications

The applications of the SIT9120AC-1B3-33E133.330000D include the timing of communications systems, digital signal processors, and microprocessor systems, digital video systems, and low-voltage microcontroller systems. Its superior phase noise performance makes it an ideal choice for higher levels of accuracy applications where minimal jitter and precise timing are required, such as digital and RF applications. It is also suitable for embedded and portable devices and automotive applications, where size, cost, and power efficiency are primary design considerations.

Working Principle

The SIT9120AC-1B3-33E133.330000D oscillator works on the principle of a voltage-controlled oscillator (VCO). It uses an external control voltage to modulate the phase and frequency of the output signal. This allows the device to respond to voltage signals and produce a highly accurate clock output. It is designed to operate over a wide temperature range, offering precision control of the output frequency with minimal drift due to temperature variations. The device is powered by an internal charge pump, which converts the external power supply voltage to the voltage needed to drive the VCO.

The SIT9120AC-1B3-33E133.330000D has a power-up frequency of 133.330000 MHz and a voltage-controlled frequency range of 121.34500 MHz to 146.39900 MHz with a settling time of 2.5µs. It has a low jitter of 0.3ps RMS (20 KHz to 50 MHz) and a typical phase noise of –154 dBc/Hz at 1 MHz offset. It comes in a 5.0 x 3.2 mm surface mount LCC20 package with a supply voltage range of 2.8V to 3.3V and a maximum current consumption of 200mA.

Conclusion

In conclusion, the SIT9120AC-1B3-33E133.330000D is a high-performance, low-profile, surface-mount hybrid oscillator designed to meet the needs of demanding applications where precision timing and stable operation are required. With its low jitter, low-power consumption, and small form factor, it is ideal for a wide range of applications including communications systems, digital signal processors, microprocessors, and embedded applications. It is an excellent choice for use in low-voltage, low-power, and low-cost embedded systems.

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