Fairview Microwave Blog
Signal Chain Discussion Series: Direct Digital Sampling (No-IF)
Direct RF Sampling (DRFS) or Direct RF Conversion (DRFC) is the sampling of RF signals and conversion to digital signals without the need for an intermediate frequency (IF) stage to translate the frequency of the RF signals to a lower frequency more accessible to older digital sampling electronics. Using a DRFS analog-to-digital converter (ADC) allows for a massive shift in the RF architecture...
Signal Chain Discussion Series: Direct Digital Synthesis (No-IF)
Direct digital synthesis (DDS), as used to denote a direct digital synthesizer device, is the use of digital-to-RF conversion to directly generate RF signals from digital signals. In some cases, DDS RF signals are fully modulated and ready to be amplified and sent along to an RF antenna for transmission. In other cases, a DDS device/system may be tasked to create tones that are later modulated...