SIT8008BCT8-18S

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Programmable Oscillators

Programmable oscillators are necessary in a variety of applications and are used to generate a specific targeted frequency of output. One example of a programmable oscillator is the SIT8008BCT8-18S, which is a CMOS programmable oscillator/AT-cut crystal. This type of oscillator is intended for use in styles such as digital video cameras, cell phones, and electronic toys.

Application Field of SIT8008BCT8-18S

The SIT8008BCT8-18S is a programmable oscillator that offers excellent long-term stability and low cost in an ultra-small package. This oscillator enables its users to easily select the desired frequency from a wide range of operating frequency selections. In addition, the oscillator offers a minimal power consumption of 0.1 µW and adjustable output amplitudes typical of its type. Through the use of the SIT8008BCT8-18S users can easily customize their oscillators to meet the needs of their applications.

The oscillator is intended for use in applications such as digital video cameras, cell phones, and electronic toys with their excellent long-term stability, low cost and high performance. In addition, the use of the oscillator in these applications permits a reduction in production time, as the need to manually adjust the output is eliminated due to the built-in adjustable output amplitudes. This allows users to adjust the output simply through the use of a programming oscillator.

SIT8008BCT8-18S Working Principle

The SIT8008BCT8-18S programmable oscillator utilizes a crystal-controlled oscillator combined with a CMOS oscillator to generate frequencies within the allowable range. The operating frequency is determined by two banks of switchable addresses encoded into the oscillator, via a programmable code generator. Furthermore, the programming of the oscillator is provided on a custom IC and requires voltage-level control interfaces at its output.

The crystal-controlled oscillator and CMOS oscillator allow for the frequencies to be switched between the two which may provide any frequency value within the given range of the oscillator. The programming of the oscillator is provided by a custom IC which takes in the programming signals through its input and utilizes an internal code generator, depending on the values of the programming signals, to obtain the desired output frequency required.

The single-ended voltage waveform output of the oscillator can be further amplified to provide an output waveform of constant amplitude and limited harmonic content. Also, the oscillator further provides numerous other features such as minimal power consumption, adjustable amplitudes, adjustable pull range and temperature coefficient.

Conclusion

The SIT8008BCT8-18S is an excellent choice for a programmable oscillator, particularly when seeking to customize the output frequency for applications such as digital video cameras, cell phones, and other electronic toys. Its long-term stability, low cost and adjustable amplitudes help to achieve the desired output in an easy and efficient manner. Furthermore, its working principle of combining crystal-controlled oscillator with a CMOS oscillator, as well as adjustable pull range, temperature coefficient and low power consumption facilitates the production of output without sacrificing performance.

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