Crystal oscillator II

This circuit utilizes an LT1011 comparator biased in its linear mode along with a crystal to set its resonant frequency. It can achieve a clock frequency of a few hundred kHz that is temperature-independent, with an approximate duty cycle of 50%.

The circuit in question employs the LT1011 comparator, which is known for its precision and stability in various applications. By biasing the comparator in its linear mode, it is possible to exploit its characteristics to generate a stable oscillation. The inclusion of a crystal oscillator is crucial as it determines the resonant frequency of the circuit, ensuring that the output frequency remains stable across varying environmental conditions.

The design achieves a clock frequency in the range of several hundred kHz, making it suitable for applications that require reliable timing signals. The temperature independence of the clock frequency is particularly advantageous in environments where temperature fluctuations could otherwise affect performance. The circuit is designed to maintain a nearly 50% duty cycle, which is essential for many digital applications, ensuring that the high and low states of the output signal are balanced.

In terms of implementation, the LT1011 comparator is configured with feedback components that allow it to oscillate between its high and low states. The crystal is connected in such a way that it influences the feedback loop, establishing the desired oscillation frequency. Additional passive components, such as resistors and capacitors, may be included to fine-tune the performance and stability of the oscillator circuit.

Overall, this circuit represents a robust solution for generating a stable, temperature-independent clock signal suitable for various electronic applications.This circuit uses an LT1011 comparator biased in its linear mode and a crystal to establish its resonant frequency. This circuit can achieve a few hundred kHz, temperature independent clock frequency with nearly 50% duty cycle.