345LB3I2457T

Oscillators

345LB3I2457T Application Field and Working Principle

Oscillators are circuit components that generate periodic signals, most commonly in the form of sine and square waves. Oscillators are used in numerous electronics applications such as in oscillators, radios, Oscilloscope, modulators and many more. The 345LB3I2457T Oscillator is an integrated surface-mount component used for generating oscillations in an application circuit.

This dedicated Oscillator features an internal oscillator circuit with a frequency range of 2 – 60MHz, depending on the application circuit design, temperature and frequency of operation. It includes a triangle wave oscillator, a divider circuit, an operating amplifier and a drive circuit. The combination of these circuits allows the Oscillator to produce either a square wave or a sine wave output, depending on the user’s preferences.

The 345LB3I2457T Oscillator\'s primary application field involves active radio receivers, where it is used for improved digital audio quality in the reception of broadcast radio stations. It is also used as a portable transmitter and is utilized to manage the frequency stability of the transmission by keeping a steady and accurate waveform. Oscillators such as the 345LB3I2457T are perfect for providing stable frequency control when tuning in between two stations or in regions where any variations in frequency would make the transmission inaudible.

The working principle of the 345LB3I2457T revolves around a triangle wave oscillator, which consists of two amplifiers in parallel. One of the amplifiers is connected to a resistor and a capacitor, while the other is connected to a self-compensating timer circuit. The resistor and the capacitor combination serves as an integrator, which integrates the input signal into a triangle wave, while the self-compensating timer ensures that the output of the triangle wave oscillator remains at a constant frequency and amplitude. The triangular wave is then used to drive a divide by two counter circuit to generate the desired output waveform.

This integrated Oscillator also includes an operating amplifier that drives the output to its desired destination. It also contains a voltage regulator that regulates the power supply and provides protection against excessive input/output voltage levels. Additionally, the 345LB3I2457T is manufactured as a highly efficient component that requires minimal power consumption in order to operate.

In conclusion, the 345LB3I2457T Oscillator is an advanced integrated circuit that produces either a sine or square wave output and is primarily used in active radio receivers. Its internal oscillator circuit allows it to produce the desired waveform with an accurate frequency range and low power consumption. This makes the 345LB3I2457T an ideal choice for a reliable and efficient component for frequency control.

Sources

• Alantro: 345LB3I2457T Datasheet
• Wikipedia: Oscillator
• Microchip: Demystifying Oscillators – Sine, Triangular and Square Wave Output