In this article, we examine how adding a zero to the PLL loop filter affects the transient behavior and steady-state errors.
In this article, we examine how adding a zero to the PLL loop filter affects the transient behavior and steady-state errors.
In this article, we derive design equations for a second-order PLL with a lag-lead filter by examining its Bode plots.
In this article, we derive design equations for a second-order PLL with a lag-lead filter by examining its Bode plots.
Learn how using a pole-zero loop filter improves PLL performance and design flexibility over the simpler lag filter.
Learn how using a pole-zero loop filter improves PLL performance and design flexibility over the simpler lag filter.
In this article, we evaluate the designs of two simple frequency synthesizers to learn how a second-order PLL with a lag…
In this article, we evaluate the designs of two simple frequency synthesizers to learn how a second-order PLL with a lag filter can provide a faster rise time than a first-order PLL.
Ring in the new year with this roundup of All About Circuits' most popular educational content, both technical and historical.
Ring in the new year with this roundup of All About Circuits' most popular educational content, both technical and historical.
In this article, we analyze the steady-state errors and Bode plots for a second-order PLL with a simple, first-order loop filter.
In this article, we analyze the steady-state errors and Bode plots for a second-order PLL with a simple, first-order loop filter.
Introduced in the late 1980s, Maxim’s MAX232 made RS-232 interfaces trivial with dual drivers, dual receivers, and…
Introduced in the late 1980s, Maxim’s MAX232 made RS-232 interfaces trivial with dual drivers, dual receivers, and their +/-10 V rails—all from a single +5 V supply.
Learn how adding a lowpass loop filter to a PLL with a single integrator impacts both the frequency-domain and…
Learn how adding a lowpass loop filter to a PLL with a single integrator impacts both the frequency-domain and time-domain response.
Higher-order PLLs are more commonly used than first-order PLLs. To explain why, we explore the first-order PLL's behavior…
Higher-order PLLs are more commonly used than first-order PLLs. To explain why, we explore the first-order PLL's behavior in response to two inputs: a frequency step and frequency ramp.
The new low-power BLE SoC targets medical designs such as wearable biosensors and glucose monitors.
The new low-power BLE SoC targets medical designs such as wearable biosensors and glucose monitors.
In this article, we'll use the linearized model of a first-order PLL to understand its response to a simple input change.…
In this article, we'll use the linearized model of a first-order PLL to understand its response to a simple input change. We'll then use Matlab simulations to visualize the signals.
In this article, we'll use a nonlinear mathematical model to improve our understanding of how a first-order PLL locks to a signal.
In this article, we'll use a nonlinear mathematical model to improve our understanding of how a first-order PLL locks to a signal.
The phase-locked loop (PLL) is widely used in contemporary analog and digital communication systems. In this article, we…
The phase-locked loop (PLL) is widely used in contemporary analog and digital communication systems. In this article, we develop a nonlinear model for the analog PLL by analyzing its key components.
In this Tech Guide from Mouser Electronics, explore how Microchip’s LAN938x 100BASE-T1 Gigabit Ethernet Switches enable…
In this Tech Guide from Mouser Electronics, explore how Microchip’s LAN938x 100BASE-T1 Gigabit Ethernet Switches enable secure, low-latency automotive networks with Layer 2+ switching, AVB/TSN support, and energy-efficient performance. Watch now to get started!
PLL demodulators are popular, easy to implement, and offer superior noise performance compared to many other FM…
PLL demodulators are popular, easy to implement, and offer superior noise performance compared to many other FM demodulator circuits. Learn how they operate in this article.
Learn how an analog multiplier or AND gate can function as a quadrature detector for FM demodulation.
Learn how an analog multiplier or AND gate can function as a quadrature detector for FM demodulation.
Learn how the Foster-Seeley discriminator, a classic analog circuit for FM demodulation, achieves its superior linearity.
Learn how the Foster-Seeley discriminator, a classic analog circuit for FM demodulation, achieves its superior linearity.
In this article, we'll analyze the single-tuned discriminator for FM-to-AM conversion. We'll then discuss the balanced…
In this article, we'll analyze the single-tuned discriminator for FM-to-AM conversion. We'll then discuss the balanced discriminator and how it provides improved linearity across a wider bandwidth.
In this article, we will examine the basic principles of FM demodulation through the simplest frequency discriminator: a…
In this article, we will examine the basic principles of FM demodulation through the simplest frequency discriminator: a differentiator.
In this article, we'll solidify our understanding of the reactance modulator and Armstrong modulator circuits by working…
In this article, we'll solidify our understanding of the reactance modulator and Armstrong modulator circuits by working through a series of design problems.