Abstract— An overall goal of the research is to investigate a new approach to the MRI RF Transmitter. Design a high-speed MRI RF transmitter. The goal is to explore the potential of a built-in DDS core of an FPGA chip to generate a dual-channel output at a 1 GHz sampling frequency of each. This output will be processed by a dual-input DAC chip for a total of 2 GHz sampling rate. The entire system should be able to generate the output signal ranging from 100 kHz to 750MHz. To accomplish this goal, it is necessary to study and to investigate the structures of these features to see how they could be utilized as a main core in a pulse generator
According to the datasheet provided by Xilinx, a DDS core has a single sine or/ and cosine output signal. The DDS core can operate at a maximum clock of 250 MHz. A 250 MHz clock speed is insufficient to generate outputs at 1 GHz sampling frequency. Consequently, the proposed custom DDS system is expected to quadruple the clock speed of the system by implementing multiple DDS core modules within the system.
Keywords— Direct Digital Synthesis.
AD Publications is a rapidly growing academic publisher in the fields of Engineering, Medical-Health, Environmental Science and Agriculture Research. AD Publications is a registered organization broad-based open access and publishes most exciting researches with respect to the subjects of our journals. The Journals is being indexed and abstracted by all major global current awareness and alerting services.
The organization aims at undertaking, co- coordinating and promoting research and development. It provides professional and academic guidance in the field of basic education, Higher Education as well in the Technical Education. Our Aims is to Promote and support, High Quality basic, Scientific Research and development in fields of Engineering, Medical-Health, Environmental Science and Agriculture Research and to Generate Public awareness, provide advice to scholar’s researchers and communicate research outcomes.