8N4DV85LC-0080CDI

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Clock/Timing - Programmable Timers and Oscillators

8N4DV85LC-0080CDI (Certified digital isolator or CDI) is a single channel digital isolator integrated circuit used to provide galvanic isolation for digital interfaces for transmitting and receiving digital signals. It is used for isolating asynchronous data signals across digital systems and is used in radio frequency applications, communications and data acquisition systems, process control systems, audio engineering, and consumer electronics to name a few. The device operates over a temperature range of -40 to 85 deg C.

Application Field of 8N4DV85LC-0080CDI and Working Principle

8N4DV85LC-0080CDI is a programmable timer and oscillator designed to work in clock, timing, and similar applications. The device is packaged in an 8-pin leadless package (L-8) with the standard pinout of a dual in-line package. It is designed to control the frequency and duty cycle of external devices or circuits. It is programmable from a source or a logic signal and includes various configuration options such as a frequency sweep, multiple pulse width, and divider modes. The circuit also includes error checking and protection features, allowing for reliable operation in high temperature environments.

The working principle of the 8N4DV85LC-0080CDI is based on a phase-locked loop (PLL) architecture. The input signal is first converted to an analog voltage which is used to define a sawtooth waveform within the oscillator. The sawtooth waveform is then compared with a reference voltage generated by a divider/averager circuit. The error signal between the sawtooth and the reference is used to control the phase and frequency of the output signal, thus maintaining a constant output frequency. The output frequency can be programmed using the configuration pins on the chip.

8N4DV85LC-0080CDI is suitable for applications where high reliability and consistent output frequency are essential. It is used in many applications such as USB interfacing, tracking fundamentals, modulation, synchronization, as well as frequency generation for measuring and digital filtering. The device is also used in camera, music production, and gaming consoles. Additionally, 8N4DV85LC-0080CDI is used in industrial automation and sensing applications such as temperature, position and pressure sensing. Finally, due to its low power consumption and wide operating temperature range, it is also frequently used in medical applications, in particular in pacemaker systems.

Conclusion

Using the 8N4DV85LC-0080CDI, designers can reduce the chances of failure in complex systems. The device\'s combination of reliable galvanic isolation, programmable output frequency, and wide temperature range make it an ideal choice for a variety of applications, from consumer electronics to medical devices.

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