International crystal oscillator
The International Crystal OF-1 HI oscillator circuit is specifically designed to operate with third-overtone crystals, which are capable of generating higher frequency oscillations compared to fundamental frequency crystals. This oscillator configuration is particularly advantageous for applications requiring precision frequency generation, such as in communication systems and RF signal processing.
A notable feature of this circuit is its inductor-free design, which simplifies the overall layout and reduces component count. This can lead to improved reliability and lower manufacturing costs. The oscillator typically utilizes a combination of active components, such as transistors or operational amplifiers, along with passive components like resistors and capacitors to create the necessary feedback loop for sustained oscillation.
In operation, the third-overtone crystal is connected in a manner that allows it to resonate at its overtone frequency. The circuit is typically configured to provide the appropriate load and biasing conditions to ensure optimal performance of the crystal. The feedback network is carefully designed to maintain the stability of the oscillation while minimizing phase noise and distortion.
The output of the oscillator can be utilized directly or further processed, depending on the requirements of the application. The absence of inductors not only reduces the size of the circuit but also enhances the frequency response, making it suitable for high-frequency applications. Overall, the International Crystal OF-1 HI oscillator circuit represents a robust solution for generating stable and accurate frequencies in a compact form factor.International Crystal OF-1 HI oscillator circuit for third-overtone crystals The circuit does not require inductors.
Related Circuits
An oscillator circuit capable of generating a high-quality sine wave with a frequency of at least 500 MHz, intended for RFID applications. There have been attempts to utilize a class E oscillator, but the design has not yet been...
A SN7400 quartz crystal and a resistor provide a square-wave output of approximately 3.5 V. The circuit operates reliably at frequencies from 120 kHz to 4 MHz. The circuit utilizes a SN7400 integrated circuit, which is a quad two-input NAND...
This circuit functions as both an oscillator and a timer. The 2N6028 transistor remains in an 'on' state due to the excessive holding current flowing through the 100 kΩ resistor. When the switch is briefly closed, the 10 µF...
The Hartley Oscillator is characterized by an LC circuit in its collector. The base of the transistor is held steady, and a small amount of signal is taken from a tapping on the inductor and fed to the emitter...
As discussed in previous blog posts, the pin 5 terminal serves as a voltage control terminal, allowing for the adjustment of threshold and trigger levels. Typically, the control voltage is set at +2/3VCC due to the internal voltage divider....
The original BFO, a compact EICO 330 solid-state signal generator, effectively received a variety of distant longwave (LW) beacons. In late 2004 to early 2005, a new One-Active Device (1-AD) contest was introduced to complement the Crystal Set DX...