In the previous tutorial, sound waves and their properties were discussed. Now, let’s learn about acoustic waves. Sound waves typically refer to frequencies that are audible to humans, which are in the 20 Hz to 20 kHz range. However, waves with frequencies that are greater than 20 kHz are ultrasonic waves. And, those in the […]
filters
Audio filters: Understanding sound waves – Part 1
Audio electronics is a sector that refers to the circuit design that converts sound into electrical signals or electrical signals back into sound. Together, several circuits form an audio system. An audio system has several functions and, typically, can: Receive audio signals (via a microphone) Record and save audio Transmit audio (through wired or wireless […]
Keeping the noise down
By Patrik Kalbermatten, KEMET Compact nanocrystalline single-phase filters that suppress electromagnetic interference from the power provide engineers with greater design flexibility. In our increasingly connected world, we are ever more dependent on electronic equipment and devices and the semiconductors contained within. It is perhaps no surprise, then, to find that demand for components that […]
Basics of audio filters
By Diksha Nama, contributor, Engineers Garage An audio system is designed to receive audio signals (via microphone), record audio in some storage, transmit audio (through wired or wireless communication channels), and reproduce audio signals (via speakers). So, the audio circuits perform signal processing for representing the sound in the form of electrical signals, manipulate the […]
WL-CSP 25-W RF switch replaces mechanical relays
Menlo Microsystems, Inc. announced the production release of the MM5130, the first high-performance RF switch manufactured with their proprietary Ideal Switch technology. The MM5130 is designed to handle 25W with ultra-low losses, in a miniaturized wafer-level chip-scale-package (WL-CSP). Historically, this level of performance has been reserved for large RF mechanical relays, which have major drawbacks. […]
Automotive noise suppression filters work in MF and HF bands
TDK Corporation announces that it has developed the MHF1608 series of HF band noise suppression filters for automobiles, and will begin mass production in September 2020. The noise suppression component will be inserted in signal lines for electronic control circuits in automotive applications including car audio, navigation, and battery monitoring systems. Signal transmission paths are […]
