DSC400-1111Q0090KE2

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Pin Configurable/Selectable Oscillators are special types of oscillators used to provide accurate frequency control in electronic and radio equipment. The DSC400-1111Q0090KE2 is one such oscillator, with a wide range of applications and a unique design is which allows it to be easily and accurately configured by means of its pin connections. In this document, we shall discuss the application fields and working principles of this oscillator.

Application Fields and Specifications

The DSC400-1111Q0090KE2 is a precision oscillator with a frequency range from 1 KHz to 100 MHz, providing very impressive holdover accuracy of +/- 2 ppm. It is suitable for a wide range of applications, such as data communications, automotive, instrumentation, GSM/CDMA, FTTH and optical networking, aerospace and defense, industrial control and medical electronics. Its small size, low power consumption, and high reliability make it ideal for many applications.

The device is offered in a RoHS-compliant 3 x 3 mm QFN package and is rated to work over temperatures from -20°C to +85°C. It also provides an MTBF of more than 1 million hours and offers excellent ESD protection up to 8 kV HBM. It also meets MILSTD-202G requirements.

In terms of features, the DSC400-1111Q0090KE2 offers excellent phase-frequency detectors, digital and analog mute inputs, EMI filters, firewalls, and shielding. It also includes a selectable drive strength and TTL inhibit step function, with or without an enable pin.

Working Principles

The DSC400-1111Q0090KE2 is a pin configurable/selectable oscillator that uses a quartz oscillator to provide its signal output. The signal is then processed by a Phase-Locked Loop (PLL) circuit for frequency stability. The device uses two control lines to select the frequency, which can be fine tuned using the enable pin. The control lines can also be used to set the firewalls, enable and mute inputs, and select the drive strength.

The device utilises a patented Digital Frequency-Selectable architecture, which allows for quick setup and excellent performance. The input signal is digitised and processed by the PLL to adjust for changes in the crystal dynamics, providing excellent frequency tracking. This allows for improved jitter performance, even when the oscillator is running at very low frequencies.

The device is also equipped with an advanced EMI filter, designed to improve signal integrity in noisy environments. It is available in single, dual, and four-channel configurations, allowing it to be used in multi-channel systems. The device also offers a selectable drive strength, allowing it to be configured to match the requirements of the application.

In summary, the DSC400-1111Q0090KE2 is a pin configurable/selectable oscillator that offers excellent performance and reliability. It is suitable for a wide range of applications, including data communications, automotive, instrumentation, GSM/CDMA, FTTH and optical networking, aerospace and defense, industrial control and medical electronics. Its unique design allows for easy configuration and setup, and its excellent features make it an ideal choice for many applications.

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