DSC1001DI2-128.0000T

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Oscillators

Oscillators generate regular pulses and produce a sinusoidal or other periodic signal. This signal is usually used in test and measurement equipment, control systems, video and audio equipment, communication equipment, computer and peripheral systems, motor control, and other systems. Oscillators are also used for driving analog-to-digital converters to synchronize and control signal processing.

The DSC1001DI2-128.0000T is one of these oscillators. It is a low-power oscillator designed for use in portable and stationary applications. It has a frequency range of 9.5 to 125 kHz, accuracy of ±20 ppm, and fast acquisition of less than 1 ms. It provides high-frequency stability and has a low-power consumption of 1 to 2 mA.

Application Field

The DSC1001DI2-128.0000T application field covers various fields such as automotive systems, navigation systems, aerospace applications, medical equipment, telecommunication systems, instrumentations, and electronics. For example, the part can be used in GPS receivers, mobile networking, laptop computers, radio frequency identification (RFID) systems, coordinate measuring machines, audio/video applications, temperature and pressure controls, and other standard oscillation applications.

Working Principle

The DSC1001DI2-128.0000T oscillator has a crystal oscillator integrated with a low-power CMOS microcontroller for a low-noise, high accuracy oscillator. It consists of two parts, the crystal oscillator and the control logic circuit. The crystal oscillator is made up of a quartz crystal and an oscillator circuit. The oscillator circuit is driven by a signal from the crystal that is amplified, tuned to the required frequency, and used to drive the output.

The control logic circuit converts the digital logic signal from the microcontroller into a sinusoidal oscillator signal. A temperature compensation system is used to compensate the frequency drift of the crystal over temperature. This ensures a stable frequency output over temperature variations.

In order to maintain a stable frequency, the oscillator has two different modes of operation, namely “open loop” and “closed loop”. In the open-loop operation, voltage or resistance values are controlled to maintain the frequency stability. In the closed-loop operation, a phase-locked loop circuit monitors the frequency output of the oscillator and provides corrections to the crystal to maintain the stable frequency output.

Conclusion

The DSC1001DI2-128.0000T is an advanced oscillator that is used in a wide range of applications. It is a low-power oscillator with high-frequency stability and low-noise operation. Its crystal oscillator and control logic circuit provide the required frequency with accurate performance over a wide temperature range. The phase-locked loop circuit helps maintain a stable frequency output and is ideal for use in portable and stationary applications.

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