CDCE937PWG4

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The CDCE937PWG4 is a low power, high performance clock generator with an integrated PLL supporting up to four outputs. This Clock Generator PLL is ideal for applications needing a high degree of accuracy and stability including communication infrastructure, military, industrial, and automotive applications.

The ultra-low power mode of the CDCE937PWG4 allows it to operate from 0.48V to 3.6V and requires only 21mW typical. This helps reduce the overall system power in end applications. Internal voltage regulators allow for output frequency stability in changing supply conditions.

The four integrated PLLs offer a lock range from 4kHz up to 250MHz and a reference clock input range from 5MHz to 500MHz. The four outputs can generate signals from 8kHz up to 750MHz, which actually provides for a wide range of frequency synthesis.

The clock generator includes six configurable differential clock outputs, four single-ended clock outputs, one programmable single-ended reference clock output and one programmable differential reference clock output. Applications benefit from the wide selection of output structures and a maximum frequency of 750MHz.

The multi-output clock generator PLL also features a wide range of programmable control and configuration ports. These control ports are simple and intuitive; allowing for output clocking rates to be set without any special engineering tools. The design also features a programmable power-down switching capability, allowing for reduced power consumption when the system requires it.

The device\'s working principle is based on an asynchronous feedback loop. This loop makes use of two signals in sequence as the input to a voltage-controlled oscillator (VCO). The VCO generates a signal that is divided by a frequency synthesizer, which produces the output waveforms.

The output of the frequency synthesizer is compared with the reference signal, and the VCO\'s voltage is adjusted to minimize the difference in frequencies. This process then maintains its stability over time, providing a reliable and accurate clock signal output.

Lastly, the CDCE937PWG4 is further enhanced through its advanced clock distribution control integrated circuit (CDCIC). This improves the accuracy and stability of the clock signals by distributing them to the outputs in an optimized format. As a result, the device offers the highest level of performance in frequency synthesis.

The CDCE937PWG4 is highly suitable for a wide variety of applications requiring a high degree of accuracy and stability, such as communication infrastructure, industrial, automotive, and military applications. Its working principle and its various output options make it suitable for many different applications, allowing for flexible and cost-effective designs.

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