595GD19M4400DGR

Oscillators

The 595GD19M4400DGR is a high-precision digital oscillator utilized for applications requiring low clock jitter. Its primary application includes low frequency (LF) timing control, signal synchronization, and frequency reference generation. It has numerous uses in consumer electronics, embedded systems, and precision instrumentation.

The 595GD19M4400DGR is a single-sided, differential output oscillator platform, offering an operating range from 19.44 to 44.0 MHz. This device exhibits high-precision frequency stability at an accuracy better than +/-150 ppm (parts per million) across its operating temperature range. It also features low jitter of 100 fs at the 10 kHz to 10 MHz frequency range and a current consumption of up to 66 mA, making it ideal for low power applications.

Working Principle

The 595GD19M4400DGR is based on a crystal-controlled oscillator architecture. It utilizes a high-stability quartz crystal and an active oscillator circuit. Together, these components form a resonant loop that will oscillate at its center frequency within specified ranges. An external resistor-capacitor (RC) network is used to shape the oscillator’s frequency response.

The external RC network is used to set the device’s frequency output. It provides the initial frequency tuning in the direction that the desired frequency lies. The microprocessor then fine-tunes the clock frequency using digital control, thus providing precise control over the oscillator frequency.

The RC network also provides frequency and amplitude stability at the output. It reduces the natural frequency parabola of the crystal and the oscillator loop, thus reducing frequency drift. This results in an output signal of low jitter and high precision.

Signal Characteristics

The 595GD19M4400DGR is designed for applications requiring low jitter precision clocks. It offers fast rise/fall times and wide flat frequency response. The output signal has a high output duty cycle. The rise/fall time is less than 20 ns and the average duty cycle equals the nominal output frequency.

The 595GD19M4400DGR is also designed to provide low jitter performance. The jitter is 1 ps or less at frequencies up to 44 MHz. Jitter degradation is less than 10 ps for up to 4-GHz frequencies. The jitter is further reduced when the frequency is locked to an external clock source or the oscillator is used in a frequency divided mode.

The 595GD19M4400DGR is also designed to provide a low power consumption. The device requires a supply voltage of 3.3 V ± 10% and a maximum supply current of 66 mA. This makes it suitable for applications requiring a low-power solution.

Conclusion

The 595GD19M4400DGR is a high-precision oscillator with excellent characteristics for timing control, synchronization, and frequency reference generation applications. It offers wide flat frequency response, low jitter, and low power consumption. All this makes it a great choice for applications requiring precise timing control and low power.