ADF4112BRUZ-REEL7 Integrated Circuits (ICs)

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The ADF4112BRUZ-REEL7 is a product of Analog Devices, Inc, a global leader in the design and manufacture of clock generation and timing solutions. This device provides the industry\'s highest level of integration and recent advancements in both hardware and software have made it one of the most versatile and most powerful clock generators available.

The ADF4112BRUZ-REEL7 is a high performance, DDS-based, low noise, wideband clock generator capable of creating finely tuned, low-jitter frequencies. This device is capable of creating clock frequencies with jitter as low as 600ps and is capable of generating frequency resolutions as low as 1KHz and wideband frequencies up to 1GHz. As a fractional-N synthesizer, the device can be used to generate several specific clock frequencies from one input reference frequency.

The ADF4112BRUZ-REEL7 device is designed for applications requiring high-frequency, low-jitter clock generation. It is suitable for applications such as test and measurement, communications, navigation, medical, aerospace and defense, and semiconductor test systems. This device is ideal for generating clock frequencies for high-speed digital logic and serial I/O systems, as well as providing an internal stable clock to digitally controlled oscillator (DCO) and voltage controlled oscillator (VCO)- based systems.

The ADF4112BRUZ-REEL7 is a complete and highly integrated device that includes a two output digital phase frequency generator (DPFG) with a divide-by-2 divider, a fractional-N synthesizer, as well as an output buffer. It requires a single supply voltage of 2.5V and delivers clock outputs suitable for a wide variety of applications. The main output of the DPFG consists of a 16-bit digital up/down counter with an internal programmable divider and phase-comparator. This output can be used for producing various clock frequencies, including those that are fast and slow compared to the reference clock frequency. The divide-by-2 divider reduces the output frequency by a factor of 2.

The DPFG also includes phase interpolator, comparator and phase-adjacent loop filter components. The phase interpolator interpolates between two successive phase values in the counter allowing to produce the desired frequency. The comparator output is used to determine which of the two phases is the correct one. The phase-adjacent loop filter is used to filter the output of the comparator and eliminate any spurious clock transitions.

The fractional-N synthesizer of the ADF4112BRUZ-REEL7 allows for generating arbitrary frequency steps by adjusting the duty cycle of a reference clock. This approach allows for different audio L/C frequencies and resolutions, which are typically not attainable with conventional frequency synthesizers. In addition, the fractional-N approach allows for generating frequencies with very low jitter, which is critical for many applications.

The output buffer of the ADF4112BRUZ-REEL7 is designed to match the output characteristics of the device to be used with any type of logic. This feature is particularly useful for applications where the outputs must be used with logic with different logic levels. The outputs include a Clock-configurable-output flip-flop with an active low reset output. This ensures that the output of the device is always synchronized to the main clock input of the ADF4112BRUZ-REEL7.

In summary, the ADF4112BRUZ-REEL7 is an extremely versatile and powerful clock generator. It includes a two output digital phase-frequency generator, fractional-N synthesizer, and output buffer. The device is suitable for applications requiring high-frequency, low-jitter clock generation, such as test and measurement, communications, navigation, medical, aerospace and defense, and semiconductor test systems. This device is capable of creating finely tuned, low-jitter frequencies and is capable of producing frequencies with jitter as low as 600ps. Additionally, the device is suitable for generating frequencies with resolution as low as 1KHz, and wideband frequencies up to 1GHz.

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