8T49N244A-002ASGI

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Introduction

The 8T49N244A-002ASGI clock generator is a programmable frequency synthesizer that provides low jitter clock generation, simultaneously providing access to five internally generated clocks and two differential reference clocks. It is working in the fields of Clock/Timing – Clock Generators, PLLs, and Frequency Synthesizers, and is ideal for high-performance applications requiring multiple clock outputs.

Application Field and Working Principle

The 8T49N244A-002ASGI provides an easy way to generate multiple clock outputs from the same reference with flexibility and low cost. The programmable frequency synthesizer helps speed up the solution development by allowing software downloads as it works with both fully synthesized and configurable infrastructures. The flexible design of 8T49N244A-002ASGI is highly capable for tasks like clock multiplier, clock generator, and clock distorter. It simplifies the system setup, improves signal integrity, and reduces component count.

The 8T49N244A-002ASGI\'s working principle is based on the fact that frequency and phase can be detected and regulated by an external reference signal. By an external reference clock, two configurable input frequencies are created, one of which is multiplied up to several selectable output frequencies. Independent adjustment of phase and edge margins can be made to all output frequencies, while programmable feedback paths allow the ability to \'lock\' phase and frequency of a synchronized set of signals.

The 8T49N244A-002ASGI contains dual differential inputs and seven differential outputs. It can be used to interface from one differential reference clock to 5 different internal clock domains or 2 different external clock domains. The external inputs and outputs can have one of many independent clock domains. It supports a range of input frequencies from 500kHz to 500MHz and a programmable output frequency up to 800 MHz. The phase margin between two output frequencies can be adjustable within +/-30ps. It also offers a configurable skew between the two clock outputs.

Conclusion

The 8T49N244A-002ASGI programmable frequency synthesizer is designed for high-performance applications with multiple clock outputs from a single reference. It simplifies the system setup, improves signal integrity and reduces component count. The dual-differential inputs and seven-differential outputs system offers a wide range of frequencies for input and output with adjustable margins. It helps designers to speed up their development by allowing software downloads.

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