AX7DCF1-167.3317C

Oscillators: AX7DCF1-167.3317C

An oscillator is an electronic circuit that produces regular, repetitive signals of a fixed frequency and output magnitude. In most applications, oscillators are essential components used to create an AC signal with a specific frequency. The AX7DCF1-167.3317C oscillator is a precision high voltage current-mode oscillator with an output stable over a wide input voltage range and temperature range, delivering the perfect balance of output accuracy and low noise.

Application Field

The AX7DCF1-167.3317C oscillator is ideal for applications such as portable radio frequency (RF) transmitters and receivers, digital set-top boxes, AM/FM radios, Digital Audio Broadcast (DAB) receivers, software-defined radios, digital televisions, audio amplifiers, motor speed controllers and telemetry systems. In these application fields, the oscillator is capable of providing a precise waveform at a high frequency with low jitter, allowing for accurate and reliable communications.

Working Principle

The AX7DCF1-167.3317C is a current-mode oscillator that uses two voltage-controlled current sources. The voltage-controlled current sources are sourced from two independent supply pins, with one being a constant supply and the other a variable supply. The current sources drive a pair of symmetry-matched resistors, which form a resistive divider network to generate an output voltage that is proportional to the constant and variable supplies. The output voltage is then converted to a signal that is amplitude-modulated with the desired frequency.

In addition, the AX7DCF1-167.3317C has an integrated phase-locked loop (PLL) that allows the two voltage-controlled current sources to operate independently from each other. The PLL ensures that the two voltage-controlled current sources remain in sync, allowing the output signal to maintain its frequency accuracy even under varying load conditions. This allows the oscillator to provide a highly accurate and stable signal.

Conclusion

The AX7DCF1-167.3317C is a precise and reliable precision high voltage current-mode oscillator offering high performance with low jitter and excellent stability over temperature and voltage. It is an ideal solution for a variety of different applications, from portable radios to digital set-top boxes and audio amplifiers, due to its high output accuracy and low-noise characteristics. Its integrated PLL ensures that the voltage-controlled current sources remain in sync, allowing the output signal to maintain its frequency accuracy, making it a great choice for reliable communications.