8N3DV85EC-0141CDI

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The 8N3DV85EC-0141CDI is a programmable timer, producing accurate square waveforms. This type of timer is built to provide time constants or precision clock functions. Along with a wide range of outputs, these programmable timers are often designed with advanced features such as a programmable alarms, adjustable on/off delays, programmable pulse delays and adjustable duty cycles.

The 8N3DV85EC-0141CDI is available in a very compact, low-cost package that is suitable for clock applications and other commercial and industrial applications. This timer is capable of clock frequency up to a maximum of 50MHz, with 12-bit accuracy. This timer device is compatible with any TTL logic and DSPs, making it a versatile timing device for all sorts of applications.

Applications

The 8N3DV85EC-0141CDI is often used in the following applications:

• Computer Clocks
• Real-time clock circuits
• Precision oscillators
• Vehicular Control
• Remote Sensors
• Industrial Automation
• Telecommunications

Working Principle

The 8N3DV85EC-0141CDI utilizes a linear ramp generator configuration to achieve accurate timing functions. The timer has two inputs - the clock input (CLK) and reset input (RST), and two outputs - the output enable (OUTEN) and start pulse (S). When the device is powered up, the default values of the outputs are determined by the external clock input and reset inputs.

Upon power up the circuit initiates a linear ramp from ground to a defined voltage. The device uses the CLK input to set the maximum (top) voltage of the ramp and the reset input (RST) to set the minimum (bottom) voltage. The device keeps the outputs in this state until the external clock signal trips a comparator to change the state of the output enable signal to high (OUTEN). This enables the start pulse (S) signal, which then initiates a signal that runs along the linear ramp until the signal crosses the defined voltage. At this point, the OUTEN signal changes back to low and the S signal is terminated.

The 8N3DV85EC-0141CDI can be programmed to produce a wide range of frequencies by simply adjusting the values of the two input voltages, CLK and RST. This allows the user to control the device\'s output functionality and accuracy without any external components. With its adjustable voltage, linear ramp characteristics and wide frequency range, the 8N3DV85EC-0141CDI is perfect for many timing related applications.

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