CWX815-40.0M

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Oscillators are electronic circuits that produce continuous periodic waves that usually result in a sine wave, a square wave, or another waveform. Oscillators are used in many different applications that require a precise frequency control. An example of an oscillator is the CWX815-40.0M, which is widely used in industrial and commercial applications.

The CWX815-40.0M is a voltage-controlled crystal oscillator (VCXO). This type of oscillator has an adjustable frequency that can be changed by varying the voltage applied to the crystal. The CWX815-40.0M can output a frequency range from 40 MHz to 40.8 MHz with a voltage range from +1.6V to +3.5V. The frequency stability can be as good as ±25 ppm over a temperature range of -20°C to +60°C.

The CWX815-40.0M can be used in a variety of applications such as telecommunications, radio frequency identification (RFID) systems, and medical equipment. It can also be used in data acquisition systems, frequency synthesizers, and GPS receivers. The CWX815-40.0M is well-suited to applications that require precise frequency control and narrow bandwidths.

The CWX815-40.0M is a voltage-controlled crystal oscillator with an integrated voltage regulator. It operates in a series resonance mode with a fixed capacitance connected to the crystal. The signal frequency can be adjusted by varying the voltage applied to the crystal. The voltage regulator is used to limit the voltage range and provide a stable voltage to the crystal.

The oscillator consists of two sets of transistors which form a Colpitts oscillator. The first set consists of two transistors that are connected in a mode called a cross-coupled configuration. The second set is connected in a push-pull configuration. When the voltage applied to the crystal is changed, the frequency of the oscillator changes according to the equation: fosc = 1/(2π √RhCp), where Rh is the equivalent resistance and Cp is the capacitance of the crystal.

The CWX815-40.0M oscillator is packaged in a small 4-pin Surface Mount Device (SMD) package, with dimensions of 4.4 mm x 4.4 mm x 1.5 mm. It operates from a single +3.3V power supply and has an external control voltage range of +1.6V to +3.5V. The CWX815-40.0M has a low phase noise of -116 dBc/Hz at 10 kHz offset from the carrier frequency.

The CWX815-40.0M is designed for applications that require stable and precise frequency control. It is suitable for use in telecommunications, RFID systems, data acquisition systems, frequency synthesizers, and GPS receivers. The small SMD package allows for easy integration into existing systems. It is designed to operate from a single +3.3V power supply and has a wide external control voltage range.

In conclusion, the CWX815-40.0M is a voltage-controlled crystal oscillator designed for use in applications where precise frequency control is required. It has an adjustable frequency range from 40MHz to 40.8MHz, a wide external control voltage range, low phase noise, and a small SMD package. It is suitable for use in a variety of applications, including telecommunications, RFID systems, data acquisition systems, frequency synthesizers, and GPS receivers.

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