CMX309HBC50.000MTR Crystals, Oscillators, Resonators

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Oscillators

Oscillators are electrical circuits that generate an oscillating signal, typically a sine wave, a square wave, or a complex waveform at a specified frequency. Oscillators are essential components in many electronic devices and offer a wide range of applications.

CMX309HBC50.000MTR Application Field and Working Principle

The CMX309HBC50.000MTR is a high-performance, low-cost temperature compensated crystal oscillator (TCXO) manufactured by CMX Technologies. TCXOs are frequently used in radio communications and timing applications to keep frequency signals undistorted and stable over a wide temperature range and in conditions of significant vibration.

The CMX309HBC50.000MTR is designed for applications in GSM/3G/4G cellular and other wireless communications systems. It offers optimal performance with regard to accuracy, stability and phase noise. Its typical frequency output is 50.000 MHz, with an operating temperature range of -40ºC to +85ºC (-40ºF to +185ºF). The CMX309HBC50.000MTR is built with advanced Cs-MEMS quartz technology, ensuring an ultra-low power consumption in a compact ceramic package.

The main principle of the TCXO oscillator is the crystal resonator. A quartz resonator consists of a quartz crystal cut into a vibrating plate or tuning fork and electrodes on its two opposite sides. The oscillator circuit is designed to generate a periodic pulse that causes the quartz resonator to vibrate, modulate the frequency, and adjust the output waveform. The circuit provides a stable tuning fork vibration frequency that is largely resistant to factors such as temperature and humidity. This allows the TCXO oscillator to remain stable and accurate even over a wide temperature range.

The CMX309HBC50.000MTR TCXO has a 0.5 to 1.0 ppm maximum frequency at +25ºC, and a low typical phase noise of -130dBc/Hz at 10kHz offset. It features short-term and long-term stability of 0.05ppm and 20ppm at +25ºC, respectively. The oscillator\'s impressive low-jitter performance, low spurious emissions, and wide modulation bandwidth ensure exceptional noise immunity and signal integrity.

The CMX309HBC50.000MTR is intended for medium to high-end applications in GSM/3G/4G cellular and other wireless communication systems, providing a robust frequency source that ensures reliable transmission and reception of signals in harsh environments. It is an ideal choice for use in base stations, mobile phones, and other wireless devices.

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