7A-12.000MAAQ-T

Series:	7A
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	12MHz
Frequency Stability:	±30ppm
Frequency Tolerance:	±30ppm
Load Capacitance:	10pF
ESR (Equivalent Series Resistance):	80 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	2-SMD, No Lead
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Height - Seated (Max):	0.053" (1.35mm)

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Crystals: 7A-12.000MAAQ-T Application Field and Working Principle

Crystals are specialized components used to regulate frequencies in modern electronics and electrical systems. They come in various types and sizes, including 7A-12.000MAAQ-T. This article discusses the application field and working principle of this type of crystal oscillator.The 7A-12.000MAAQ-T crystal oscillator is primarily used in communication devices, such as digital radios, mobile phones, Wi-Fi systems, and satellite broadcast receivers. Its high frequency stability makes it suitable for these applications. The 7A-12.000MAAQ-T is available in both overtone and fundamental tuning modes, allowing for more flexibility in circuit design.In the 7A-12.000MAAQ-T crystal oscillator, a quartz crystal is used as the oscillating element. The crystal is mounted between two metal plates and connected to an external tuned circuit. When a voltage is applied to the oscillator, the quartz crystal vibrates at a specific frequency, producing a sinusoidal waveform. The frequency of the waveform depends on the properties of the crystal and the configuration of the tuned circuit.The tuned circuit is essential to the functioning of the crystal oscillator. It consists of an inductor and a capacitor connected in series, with the crystal connected in parallel. By adjusting the capacitance or inductance of the tuned circuit, the frequency of the oscillator can be adjusted. The oscillator can also be adjusted by changing the damping factor of the circuit.In order to ensure accuracy, crystal oscillators must be regularly calibrated. The accuracy of the oscillator depends on the frequency stability of the crystal. A thermistor can be used to measure the temperature at the crystal, allowing for more precise calibration.The 7A-12.000MAAQ-T crystal oscillator offers many advantages over alternative oscillators. Its frequency stability is excellent, and it is tolerant of wide temperature ranges. It is also resistant to interference, making it suitable for applications in noisy environments. The 7A-12.000MAAQ-T also has a low phase noise, making it ideal for sensitive communication applications.In conclusion, the 7A-12.000MAAQ-T crystal oscillator is a reliable and versatile component for communication devices. Its high frequency stability and low phase noise make it ideal for many applications, while its robust construction makes it tolerant of wide temperature ranges and interference. It is regularly calibrated to ensure accuracy, and its tuned circuit can be adjusted to change the frequency of the oscillation.

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