EDN

Signal Chain Basics #116: Combining signals for better performance

When the phase noise performance is just not good enough, one possibility is to combine two or more signals that are in phase to generate a better phase noise signal. This concept applies to the ...
Electronic Design

VCO Transforms Sound Card Into Precision DC-Coupled ADC

Personal-computer sound cards are sometimes used for analog audio signal acquisition. Also, the Web features many free programs that implement virtual two-channel oscilloscopes by acquiring signals ...
Electronic Design

Low-Noise Signal Generation And Fast Frequency Settling Time Can Coexist – Overcoming The Conflict

Figure 1: The S-Series SGA analog signal generator offers frequency switching speeds of less than 100 µs and typical phase noise at 1 GHz of -135 dBc/Hz at a 20-kHz offset. Figure 2: Shown is a graph ...
Embedded

Implementing a Raspberry Pi-based synthesized RF signal generator

The system in Figure 2 uses the ADF4372 PLL (see Figure 5), a wideband synthesizer with integrated VCO, that allows the implementation of fractional-N or integer-N frequency synthesizers when used ...
The Engineer

Revolution and Evolution in Frequency Synthesis: How PLL/VCO Technology Has Increased Performance, Decreased Size, and Simplified Design Cycle

Microwave frequency generation has posed significant challenges to engineers over the years, requiring in-depth knowledge of analog, digital, and radio frequency (RF) and microwave ...
Design-Reuse

Analysis and Summary on Clock Generator Circuits and PLL Design

The demand for analog and mixed-signal-based integrated circuits (ICs) has surged due to the increasing reliance on electronic-based applications across industries. As the world transitions to more ...