ADC12EU050EB/NOPB

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Evaluation boards represent an essential tool both for designers of electronic systems using integrated circuits and for students who need to learn the fundamentals of basic designs. They can be used to dissect the principles of operation of integrated circuits and thus aid in enhancing the knowledge base and experience of the user. Evaluation boards are available for almost any kind of communication or circuit building technology from switches and transistors to Analogue to Digital converters and RF communication. This article focuses on the ADC12EU050EB/NOPB application field and working principle.

Field of Application

The ADC12EU050EB/NOPB is an Analogue to Digital converter evaluation board comprised of a 12-bit elementary converters which works at a maximum sampling frequency of 50 MSPS (Mega Samples Per Second). It offers 2 analogue input channels, the possibility of a combined differential input and a single ended input per channel. In the Artix-7 FPGA, the ADC12EU050EB/NOPB allows the user to readily employ LVDS clock rates at up to 50 MHz in order to process additional LF noise and Undershoot compensated data before sending it to the application processor.

External Connections

The ADC12EU050EB/NOPB is connected to the host processor via four different ports: I2C, SPI, Serial Peripheral Interface (SPI), and Universal Serial Bus (USB). The I2C port is mainly used to communicate with the digital core, while the SPI port is reserved for controlling the FPGA configuration settings. The USB port is used for controlling and monitoring the ADC conversion process, while the SPF port is used for FPGA driven data acquisition. The evaluation board includes two separate Analogue to Digital signal path connectors which enable the user to both sample and convert incoming signals.

Design Overview

The ADF12EU050EB/NOPB evaluation board is based on the 12-bit ADC12EU050EB series, an Analogue to Digital converter module. In order to ensure a successful design, a few other components were added to the evaluation board. These are the clock generator, the PLL, the FPGA, voltage regulators, the DSP, the memory, the ADC, the serial transceiver and the digital peripherals. These components work together to analyse, convert and extract information from analogue signals in order to enable the user to develop applications based on the retrieved data. The design of the board also takes into account the requirement for sufficient noise level isolation by incorporating both a voltage quieting circuit and a high-speed shielding layer.

Working Principle

The ADF12EU050EB/NOPB is a versatile Analogue to Digital converter combining both the analogue and digital parts of the circuit. It consists of an ADC12EU050EB series which is connected to the analogue input and converts a wide range of analogue signals into a digital format. The digital part consists of the FPGA, a clock generator, a DSP, and a memory controller. The clock generator generates the digital clocks that are used to control the devices, while the DSP and the memory controller are used to control the data. The FPGA is the most versatile component of the board\'s design, as it can be programmed to perform a wide range of tasks from configuring the design, controlling the data, and analysing the data.

The clock generator\'s clock oscillates at a frequency of up to 50 MHz and is used to both drive the ADC and the FPGA. The FPGA performs the signal processing, which includes interpolation, under-sampling, over-sampling and decimation. Furthermore, the FPGA converts the data into a serial format and sends it to the main processor for further processing or storage. The evaluation board also includes a digital signal processor (DSP) that is used to convert the raw analogue data into a more useful digital format, primarily to reduce the noise level of the signal. The DSP is usually used in combination with the FPGA to provide a more accurate signal.

Advantage of the Board

The ADF12EU050EB/NOPB provides a wide range of advantages for users. It is capable of sampling frequencies of up to 50 MSPS, which is a lot quicker than the average ADC. The board includes two separate analogue to digital signal paths, enabling the user to both sample and convert signals quickly and efficiently. The board also includes an astonishingly low level of noise, making it ideal for a wide range of applications and signal processing tasks. Additionally, the board includes a range of digital signal processor and memory controller architecture, which enables the user to build complex applications and reduce the processing time.

In conclusion, the ADF12EU050EB/NOPB is an excellent Analogue to Digital converter evaluation board that provides a wide range of advantages for users. It is suitable for a variety of applications and enables the user to both sample and convert incoming signals quickly and efficiently. The board includes a wide range of components, such as a clock generator, a PLL, a DSP, a memory controller, and a digital signal processor, enabling the user to build complex applications in a short time. The board\'s low noise level combined with its high sampling frequency makes it an ideal choice for many applications. The ADF12EU050EB/NOPB should therefore be considered for any application requiring Analogue to Digital conversion.

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