SIT9003AC-1-33DD

Programmable Oscillators

The SIT9003AC-1-33DD is one of the many programmable oscillators developed in a wide range of applications. It is an ultra-small size quartz oscillator, consisting of a standard quartz crystal, two active elements, two capacitor devices and two transistors. The device has a very low power consumption and a high accuracy, making it suitable for all types of devices.

Application Field

The SIT9003AC-1-33DD is primarily used in automotive and consumer electronics applications, specifically in car audio systems, consumer telephones, PDAs and computer peripherals that require high accuracy and low power consumption over time. It is also used in medical instrumentation and medical tracking and data monitoring applications. Furthermore, due to its small size, the device is often used in products that require a compact form factor.

Working Principle

A SIT9003AC-1-33DD works by oscillating the electrical resistivity of a quartz crystal, either in a static or dynamic mode. In static mode, the quartz crystal retains its output frequency and phase, but can be adjusted for phase and frequency accuracy. In dynamic mode, the phase of the crystal oscillator is adjusted in response to an external input. The oscillation is stabilized by the surrounding IC chip and two external devices, the capacitor and one of the two transistors.

The external capacitor enables the oscillation frequency of the device to be adjusted accurately, by lowering or increasing the capacitor’s capacitance. The two transistors are used to suppress the electrical noise that can arise from the oscillation of the quartz crystal.

Conclusion

The SIT9003AC-1-33DD is a versatile and multi-purpose programmable oscillator that is suitable for a wide variety of applications. It is low power consumption and highly accurate, making it ideal for automotive and consumer electronics applications as well as medical instrumentation and medical tracking and data monitoring applications. The device is also well-suited for products that require a compact form factor, thanks to its small size.