84325EMLNT

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 84325EMLNT is a common type of programmable clock generator. The device is capable of configuration through typical write-only programming techniques, allowing for frequency reconfiguration according to the specific application. Furthermore, the device provides for up to 14 output pins, allowing for high-pin-count solutions.

The main purpose of the 84325EMLNT is to generate clock and timing signals. It can accept a wide range of external reference and clock sources, including standard clock oscillators, power supplies, and analog signal sources. Output frequencies can be generated in the range of several kHz to several hundred MHz, depending on the external reference and the on-chip programming.

The 84325EMLNT integrates both a high-performance phase-locked loop (PLL) and frequency synthesizers, supporting both fixed-frequency output and digitally-controlled output (DCO). The device also features an output enable input that can be used to enable or disable the output. This feature can be used to prevent mismatching of the outputs in multiple-DCO designs, as well as to control the power consumption of the system.

The output of the device consists of up to 14 individual pins, each of which can be programmed for either a clock signal or a timing signal. Depending on the configuration, outputs can be single-ended or differential, LVCMOS, LVTTL, SSTL, and others. The device also includes an accurate reference oscillator and multiple on-chip prescalers to simplify clock tree design.

The working principle of the 84325EMLNT is relatively straightforward. Once the external reference and clock sources are selected and the desired frequency is programmed, the device locks onto the reference source and generates an output clock or timing signal that is frequency-modulated to the programmed frequency. The output enable input can be used to control the power consumption of the system by disabling the output when it is not needed.

In summary, the 84325EMLNT is a versatile programmable clock generator that can be used in a wide range of applications from low-power, low-speed applications to high-speed, high-performance solutions. It integrates both a high-performance phase-locked loop and frequency synthesizers to provide highly accurate clock or timing signals in the frequency range of several kHz to several hundred MHz. The device also features an output enable input that can be used to control the power consumption of the system.

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