What is an ADC in RF?
An RF sampling analog-to-digital converter (ADC) operates at a high sampling rate and converts signals directly from radio frequencies (RF) to digital.
What is an upconverter RF?
RF upconverters or frequency upconverters are integrated assemblies that convert low frequency RF signals to higher frequency RF signals. RF Upconverters are widely used in Satellite Communication (SATCOM) systems and have applications in 5G, Point-to-Point radio communication, and a number of other applications.
What is an RF DAC?
The RF DAC extends the scope of digital signal processing beyond the baseband domain out to the antenna. It enables synthesis of the baseband digital signal directly at the final output frequency, which essentially absorbs the analog upconversion operation of the traditional architecture into the digital domain.
How does an ADC work?
ADCs follow a sequence when converting analog signals to digital. They first sample the signal, then quantify it to determine the resolution of the signal, and finally set binary values and send it to the system to read the digital signal. Two important aspects of the ADC are its sampling rate and resolution.
What is direct RF sampling?
In a direct RF-sampling architecture, the data converter digitizes a large chunk of frequency spectrum directly at RF and hands it off to a signal processor to dissect the available information.
What is an RF tap?
An RF Tapper is a device used to split an input signal into two parts. The ratio in which the signals are split is called the Split Ratio – This usually varies from 1:2 to 1:10000 – Depending on the application and power level. In theory, RF signal tappers are very similar to directional couplers.
What is Downconverting a signal?
In digital signal processing, a digital down-converter (DDC) converts a digitized, band-limited signal to a lower frequency signal at a lower sampling rate in order to simplify the subsequent radio stages. The process can preserve all the information in the frequency band of interest of the original signal.
What does an RF downconverter do?
an RF downconverter is a device which converts high radio frequency signal to low radio frequency signal is known as RF downconverter. Like RF upconverter, an RF downconverter will also have either one or two stages of mixing. Often RF downconverter is used in combination with RF LNA (Low Noise Amplifier).
What is JESD204B?
JESD204B Standard at a Glance. • A standardized serial interface between data converters (ADCs and. DACs) and logic devices (FPGAs or ASICs) • Serial data rates up to 12.5 Gbps. • Mechanism to achieve deterministic latency across the serial link.
What is Wideband RF sampling?
Wide, input −3 dB bandwidth of 9 GHz supports direct radio frequency (RF) sampling of signals up to about 5 GHz. Four integrated, wideband decimation filter and NCO blocks supporting multiband receivers. Fast NCO switching enabled through GPIO pins. A SPI controls various product features and functions to meet specific system requirements.
What is an on-chip buffer and sample and hold circuit?
The device has an on-chip buffer and sample-and-hold circuit designed for low power, small size, and ease of use. This device is designed for sampling wide bandwidth analog signals of up to 2 GHz.
How does the ad9680 work?
The device has an on-chip buffer and sample-and-hold circuit designed for low power, small size, and ease of use. This device is designed for sampling wide bandwidth analog signals of up to 2 GHz. The AD9680 is optimized for wide input bandwidth, high sampling rate, excellent linearity, and low power in a small package.
What is the measurement signal chain made of?
The measurement signal chain consists of an rms responding RF power detector and a 12-bit, precision analog-to-digital converter (ADC). These devices are powered by a CMOS linear regulator which generates 3.3 V from the 5 V USB supply.