Analog Signal Chain real world problem solutions: Technology and Tools
    • Feb 9, 2016

    RS-485 basics: the RS-485 receiver

    The last post in this series described the structure and basic operation of the RS-485 driver . In this post, I’ll discuss the RS-485 receiver and the relevant parameters in the RS-485 standard. RS-485 transceivers such as the SN65HVD7x half-dup...
    • Feb 5, 2016

    Disentangling RF amplifier specs: amplifier spot noise vs. noise figure

    In the world of high-speed amplifiers, noise is commonly represented one of two ways. For radio frequency (RF)-oriented amplifiers, such as low-noise amplifiers (LNAs), radio frequency power amplifiers (PAs) and RF gain blocks, noise is usually given as a noise figure value. For high-speed operational amplifiers (op amps) and fully differential amplifiers...
    • Feb 1, 2016

    Designing a 25G system: 5 tips to balance power, performance and price

    When transitioning from 10G to 25G for next-generation servers and switches, hardware design engineers have to satisfy competing objectives: minimize data latency, maintain or reduce power consumption, and keep costs as low as possible. You essential...
    • Jan 29, 2016

    Selecting the right inductor for ultra-low distortion Class-D audio amplifiers

    Selecting the inductance value for the output filter of a Class-D audio amplifier is always a critical design decision. With next-generation ultra-low-distortion Class-D amplifiers, selecting an inductor with poor electrical properties can severely limit the audio performance. My colleague Brian talked about how high-definition audio is changing the...
    • Jan 22, 2016

    Audio loudness and quality evaluations for smart amplifier solutions

    Making transducers sound as natural as possible is quite a challenge for audio tuners. While subjective evaluations help designers fine-tune sound, they face several challenges, such as visual cues impacting both audio perception and quality. Objective measurements help mitigate some of the challenges posed by subjective evaluation. Objective evaluations...
    • Jan 19, 2016

    Reduce power consumption in your capacitive-sensing applications

    Capacitive sensing is an effective technique for applications ranging from proximity detection and gesture recognition to liquid level sensing. Depending on the application, there will be different system requirements regarding sensitivity, responsiveness and power. Power consumption is a key parameter for many applications, including wearables, consumer...
    • Jan 12, 2016

    Differential pairs: how an equalizer solves insertion-loss impairment

    In T.K. Chin’s blog post, “ Differential pairs: what you really need to know ,” he talked about the requirements for a differential pair. In the real world, differential pairs are implemented with either copper traces in a printed circuit board (PCB) or copper wires in a cable assembly. Long PCB traces or cables exhibit high transmission...
    • Jan 5, 2016

    Memory switches bring reliability and speed to clouding computing

    Cloud computing is becoming popular in today’s computing environment by storing data and programs over the Internet instead of on local computer's hard drives. Mobility, agility, security, cost, and performance are just a few key benefits r...
    • Dec 22, 2015

    Setting the new standard: High-definition audio is changing the way we listen

    High-definition audio is becoming easier to access through a number of new devices and services that offer the highest-quality sound and content. You have likely heard of the ongoing wireless high-fidelity audio craze (hi-fi, Wi-Fi), with consumers...
    • Dec 16, 2015

    Inductive sensing: rethink the button

    Inductive-sensing technology is causing designers to rethink many problems that have existed for decades. Today, I will show you a modern approach to a button design that does not use any moving parts. Traditionally, buttons on appliances and consumer electronics used a resistive contact solution that relies on the proper functioning of a mechanical...