8N4DV85BC-0157CDI

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Introduction to 8N4DV85BC-0157CDI

The 8N4DV85BC-0157CDI is an ultra-low-power programmable oscillator system that offers superior flicker performance in a small package. This oscillator system combines a low-power microprocessor with a crystal oscillator and a voltage-controlled crystal oscillator (VCXO) to provide a programmable frequency source with better than one microsecond resolution.

Applications

The 8N4DV85BC-0157CDI programmable oscillator system is well suited for a variety of applications, including timing for microprocessors, clock and data synchronization, as well as oscillator replacement in test and measurement systems. Additionally, its output accuracy, combined with its ultra-low power operation, makes it suitable for many medical applications such as EKG, EEG and other physiological measurements.

The low-power microprocessor within the 8N4DV85BC-0157CDI was designed to reduce power consumption, thus making it suitable for portable applications. The switchable oscillator output enables selection of either a buffered version or a directly-driven version of the clock signal, depending on the application requirements. The low- noise performance of the 8N4DV85BC-0157CDI ensures minimal signal distortion.

Working Principle of 8N4DV85BC-0157CDI

The 8N4DV85BC-0157CDI uses a mix of hardware and software to provide a low-power programmable oscillator system. It contains a low-power microcontroller with a frequency-locked loop (FLL). The FLL is used to maintain frequency accuracy and stability by constantly monitoring the crystal oscillator and voltage-controlled crystal oscillator and adjusting their parameters in real time.

The low-power microcontroller is used to program the frequency, output type, and output level settings for the oscillator system. The settings in the microcontroller are stored in nonvolatile memory, allowing for a wide variety of output frequencies and customization options over a wide range of voltages. The microcontroller then configures the crystal oscillator and voltage-controlled crystal oscillator to achieve the desired frequency and output level.

The output type selection allows for either buffered or directly driven Clock signal. For buffered output types, the low-power microcontroller also drives an internal buffer amplifier to drive the output signal. The low noise performance of the buffer amplifier ensures minimal signal distortion in the output signal. For directly driven output types, the signal is directly taken from the crystal oscillator and voltage-controlled crystal oscillator.

Conclusion

The 8N4DV85BC-0157CDI is a low-power programmable oscillator system that offers high accuracy and stability with an efficient operational current. It is well suited to a variety of applications due to its low-noise output and its ability to be programmed for a wide range of frequencies and output levels. The 8N4DV85BC-0157CDI is an ideal choice for applications such as microprocessor timing, clock and data synchronization and oscillator replacement in test and measurement systems — as well as medical applications such as EKG, EEG and other physiological measurements.

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