PRBST1122

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	90mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	SaRonix-eCera™ FR
Voltage - Supply:	3.3V
Output:	PECL
Function:	Enable/Disable
Frequency:	122.88MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Discontinued at Digi-Key
Packaging:	Digi-Reel®

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Oscillators: PRBST1122 Application Field and Working Principle

Oscillators are electronic circuits that produce a repetitive signal of a particular waveform. They are used in many different applications, such as in electronics, automotive, telecommunications, and industrial electronics. The most common oscillators are the sinusoidal oscillators, which produce a sine waveform signal, and the pulse-width modulation (PWM) oscillators, which produce a square waveform signal. Specific types of oscillators such as the PRBST1122 have been developed and used in numerous applications. PRBST1122 is an integrated Circuit (IC) that is made up of an oscillator and several operational amplifiers. It is used in several areas, including the digital control of current and voltage, radio-frequency switching and phase-locked loop (PLL). The PRBST1122 oscillator is also used in applications such as the electronic ignition system of automotive engines, in which it is used as a local oscillator to generate a high-frequency signal for injection. The PRBST1122 oscillator is a type of linear oscillator circuit that uses an operational amplifier (op-amp), a pair of transistors, and a few passive components. The op-amp acts as a buffer for the oscillator, providing a stable feedback signal to the transistor pair. The transistor pair acts as a differentiator, producing an alternating current at the output. This alternating current is then used to drive a transducer such as a speaker, or can be further rectified, depending on the application. The main components of PRBST1122 oscillator are an op-amp, two transistor pairs (TQ1 and TQ2), a capacitor (C1), and a resistor (R1). The op-amp is used to buffer the oscillator for stability, and is connected to the other components in a specific way. The two transistor pairs are arranged in a compound circuit configuration, and the capacitor is used to control the frequency of the oscillator. The resistor is used to limit the current flow in the circuit, preventing the transistor from saturating. The voltage at the output of the op-amp will alternately drive the transistors on and off, producing an oscillatory signal at the output. The frequency of the oscillation is determined by the capacitor, and the amplitude of the signal is determined by the resistor. This oscillation is then fed back to the op-amp to stabilize it, resulting in an oscillator that is capable of operating over a wide range of frequencies. In the electronic ignition system of automotive engines, the PRBST1122 oscillator is used as a local oscillator to generate a high-frequency signal for injection into the spark plug. This signal allows the spark to be triggered in the combustion chamber, allowing the engine to run. The PRBST1122 oscillator is also used in RF switches, control circuits, PLL circuits, and many other applications. The PRBST1122 oscillator is a robust and reliable oscillator, capable of producing a stable, repeatable signal over a wide range of frequencies. It is used in many different applications, including automotive electronics, telecommunications, and industrial applications. Its ease of use and low complexity make it a popular choice for engineers looking for a reliable oscillator.

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