TC-37.500MDD-T

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Oscillators

The TC-37.500MDD-T oscillator is a unique form of clock oscillator, providing low jitter performance and high stability across a wide range of operating conditions. Specifically, it consists of a Quartz Tuning Fork, an Amplifier, a Feedback circuit, and a Driver output.

Application Field

The TC-37.500MDD-T oscillator is aimed primarily at applications requiring low-jitter clock signals with high stability. These include communications systems such as Ethernet switch and router deployments, as well as digital signal processing applications found in high-end consumer audio/video equipment. In addition, the oscillator can be used wherever increased accuracy in clock signals is required, such as automotive and aircraft engines, precision instrumentation systems, scientific measurement systems, and communications systems.

Working Principle

The TC-37.500MDD-T oscillator works by using a Quartz Tuning Fork as the basis for its oscillations. An Amplifier is used to increase the amplitude of the Quartz Tuning Fork’s vibrations, and then the waveform is “shaped” by a feedback network. Finally, a Driver output is used to send this shaped waveform to other components in the system.

The Quartz Tuning Fork vibrates at its own natural frequency, determined by its size and shape. This frequency is usually quite stable, which makes Quartz primarily used for frequency references. The Amplifier takes this relatively small signal from the Quartz and amplifies it, such that a strong signal is sent to the Feedback Network. The Feedback Network works to “shape” this signal, usually by sharpening it and reducing harmonic distortion. Finally, the Driver is used to output this “shaped” signal, which can then be used for synchronization and other timing applications in the system.

Overall, this combination of Quartz, Amplifier, and Feedback Network provide an accurate time reference, with a very low jitter rate and reliable stability. As such, it makes a great choice for precision timekeeping devices requiring consistent timing accuracy.

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