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Oscillators

An oscillator is a device whose output replicates its input, specifically used in electronics when the output is not only desired but also critically needed to replicate the input signal. In technical terms, it is an electrical circuit which generates a particular type of signal, usually a sine or a square wave, which is used as an input or as part of a signal.

Specifically, the DSC6001HE2A-026.0000 is an oscillator made to deliver superior performance in high-temperature, low-noise operation. It is a synthesized, programmable oscillator that offers competitive system performance. This device is optimally designed to offer extremely precise within-pi-cycle control, high-speed pulse pattern synthesis and predictable, 20-MHz operation up to 150 MHz. This oscillator is designed for the equipment used in the consumer, market, automotive and infrastructure equipment applications.

The DSC6001HE2A-026.0000 works in such a way that an output frequency is established by a digital input which is generated from the oscillator\'s internal circuits. This signal is then fed to the external components such as the power supply and the oscillators to create an output. The oscillator also provides an output power which is accurately controlled and precise for the same input signal. This precision ensures that the device is able to maintain a stable output frequency with a maximum phase noise of -85 dBc/Hz over a wide range.

Working Principle

The working principle of the DSC6001HE2A-026.0000 is by making use of a combination of analog and digital techniques. It uses analog principles to adjust the output frequency by varying the output frequency with the help of an external control voltage which is proportional to the input digital waveforms.

This oscillator also utilizes both integer-N and Fractional-N techniques to optimize the phase noise performance. Integer-N techniques perform a divide by N of the VCO frequency, where N is an integer. Fractional-N techniques perform a frequency synthesis by providing a fractional division. This division is made up of a digital control word, which determines the ratio of the PLL bandwidth to the divide-by-N divider output. This allows the output frequency to be accurately controlled.

The oscillator is also designed to run in either a synchronous or an asynchronous mode. In synchronous mode, the oscillator is referenced to an external clock and is outputting precise, stable clock signals over a wide range. In asynchronous mode, the oscillator is triggered from an internal clock and its frequency can be adjusted using the external control voltage.