SG-9101CB 125.0000M-C20PHAAA5 Crystals, Oscillators, Resonators

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Oscillators, also known as clock generators, are electronic devices that generate a repetitive and periodic signal. Oscillators, be it quartz or an RC type, are often used to clock microprocessors or provide a reference signal for other analog or digital circuitry.

The SG-9101CB 125.0000M-C20PHAAA5 oscillator is a type of quartz oscillator. It is a surface mount oscillator that operates at 125 MHz and uses the third overtone mode of a quartz crystal to produce a clean, highly stable signal. These oscillators are usually used in high-speed applications, such as frequency synthesizers and high-speed data converters, due to their excellent frequency stability. They are also widely used in wireless devices that require reliable and repeatable signal sources.

The working principle behind quartz oscillators is based on the properties of a quartz crystal. A quartz crystal is a piezoelectric material, which means that it is able to vibrate with a certain frequency when exposed to an AC voltage. This property of quartz crystals is exploited in quartz oscillators to create a stable periodic signal.

The SG-9101CB 125.0000M-C20PHAAA5 oscillator is designed to operate with a 25MHz crystal. A 25MHz crystal consists of two plates of quartz and two metal plates that are connected to a voltage source. When a voltage is applied to the metal plates, the quartz plates will vibrate at a frequency determined by their dimensions. The frequency of the oscillator can be adjusted by changing the applied voltage.

The main components of the SG-9101CB 125.0000M-C20PHAAA5 oscillator are the quartz crystal, two capacitors, and two resistors—all of which are surface-mounted on a small printed circuit board. The quartz crystal acts as the resonator, while the two capacitors and two resistors are used to configure a stable operating frequency. The circuit is designed such that a certain frequency is generated and maintained even when the component values change slightly due to temperature variations or other factors.

In conclusion, the SG-9101CB 125.0000M-C20PHAAA5 oscillator is a quartz oscillator designed to produce a very stable, highly accurate frequency. This oscillator is used in high-speed applications such as frequency synthesizers and digital data converters, as well as in wireless devices that require a reliable and repeatable signal source. The oscillator operates with a high-frequency quartz crystal, with two capacitors and two resistors configuring the circuit to maintain a stable output frequency.

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