Latest Oscillators Technical Articles

This technical brief explains what differential QPSK is and why it can be advantageous compared to ordinary QPSK.

This technical brief explains what differential QPSK is and why it can be advantageous compared to ordinary QPSK.

Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.

Build a 1V octave voltage-controlled oscillator (VCO) module and create your own analogue synth sounds.

In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.

In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.

This article presents some basic cap-sense circuit configurations and discusses how to deal with low- and high-frequency noise.

This article presents some basic cap-sense circuit configurations and discusses how to deal with low- and high-frequency noise.

In this article, we’ll compare active and passive filters and look at some common second-order active topologies.

In this article, we’ll compare active and passive filters and look at some common second-order active topologies.

Internal or external? Quartz or ceramic? Crystal oscillator or silicon oscillator? So many clocking options . . . which…

Internal or external? Quartz or ceramic? Crystal oscillator or silicon oscillator? So many clocking options . . . which one is right for your design?

In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of…

In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of FIR filters over IIR designs, e.g. stability and linear-phase response. Finally, we'll go over an introduction to designing FIR filters via the window method.

Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert…

Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert this data into an analog signal without overburdening the CPU.

Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical…

Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface.

Part One in this three-article series focuses on using the SAM4S timer/counter peripheral to precisely control the…

Part One in this three-article series focuses on using the SAM4S timer/counter peripheral to precisely control the DAC’s sampling rate.

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements,…

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements, measurement tools, and expected results. There are many ways to classify signals!

In this article we’ll use the SAM4S Xplained Pro development platform to get some hands-on experience with a PWM DAC.

In this article we’ll use the SAM4S Xplained Pro development platform to get some hands-on experience with a PWM DAC.

Learn LabVIEW FPGA by programming the on-board Xilinx FPGA of the student-focused embedded device NI myRIO.

Learn LabVIEW FPGA by programming the on-board Xilinx FPGA of the student-focused embedded device NI myRIO.

If you choose to buffer with MOSFETs instead of BJTs, you need to consider the relationship between gate capacitance and…

If you choose to buffer with MOSFETs instead of BJTs, you need to consider the relationship between gate capacitance and instability.

In this article, we will look at two variations on the basic BJT current-buffering circuit.

In this article, we will look at two variations on the basic BJT current-buffering circuit.

Op-amps become even more versatile if you can use them in high-current applications. In this article, we will look at a…

Op-amps become even more versatile if you can use them in high-current applications. In this article, we will look at a basic current-buffering circuit.

Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an…

Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the MAX31855 thermocouple-to-digital converter.

Ever wanted to find out more about Class D amplification? Here's a handy breakdown.

Ever wanted to find out more about Class D amplification? Here's a handy breakdown.

The transient response of a negative-feedback amplifier can help us to understand the nature of stability and convey…

The transient response of a negative-feedback amplifier can help us to understand the nature of stability and convey useful information about the stability characteristics of a particular circuit.