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 […]
audio
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 […]
MEMs microphones feature high SNR, wide dynamic range
TDK Corporation introduces three new MEMS microphones as part of the SmartSound family of products for mobile, IoT, and other consumer devices. Each of these high-performance microphones pushes the boundaries of microphone acoustic performance, providing advanced feature sets with very low power in small package footprints. The SmartSound family of MEMS microphones from TDK are […]
Single-turn potentiometers, encoders excel at rugged industrial apps
TT Electronics announced the addition of three new product families and three series expansions to its variable resistor portfolio. Portfolio additions include one new encoder series and two new single turn potentiometer families, along with the broadening of three existing potentiometer families. These new products are ideal for rugged industrial applications such as welding equipment […]
New 32-bit D/A converter designed for high-fidelity audio
ROHM Semiconductor announced the new BD34301EKV, a 32bit D/A converter IC designed for high fidelity audio equipment, capable of high-resolution playback of audio sources. ROHM also offers BD34301EKV-EVK-001 evaluation boards for testing the new IC’s performance (available via distributor channels). Designed to maximally extract and convert high-resolution audio data to analog, audio DAC chips are one of […]
Evaluation kit simplifies design of battery-powered, smart-home products
Aspinity announced the availability of its Acoustic Event Detection Kit (EVK1) for battery-operated, smart home devices that are always listening for acoustic triggers such as window glass breaks, voice, or other acoustic events—delivering the essential technology that helps keep homes and families safe and secure. Featuring the company’s analogML core—a fully analog machine learning processor […]
RF switch delivers Up to 10,000x improvement in IP3 linearity
Menlo Microsystems, Inc. (Menlo Micro), known for reinventing the electronic switch with its Ideal Switch™ technology, has announced a significant performance milestone that will drive breakthrough improvements in RF signal performance across multiple industries. According to Menlo Micro characterization tests, the new MM5130 Ideal Switch product, released to production last year and now shipping in […]
High-res audio amp designed for automotive apps
The HFDA801A from STMicroelectronics is a high-resolution audio amplifier that is specifically designed for compact, cost-effective automotive applications. The HFDA801A is a 2MHz switching pulse-width modulation (PWM) Class-D amplifier with a quad-bridge configuration. An integrated high-performance digital-to-analog converter (DAC) ensures hi-fi quality sound under any load condition, with noiseless turn-on/turn-off and without creating any output artifacts. With a signal-to-noise […]
Voice-first evaluation kit features analog processor and live-audio test option
Aspinity launched its Voice-First Evaluation Kit (EVK2), a complete hardware/software development kit that demonstrates Aspinity’s ultra-low-power edge processing solution for analog voice activity detection and preroll. The new EVK2 enables customers to easily integrate analog machine learning and analog data compression into battery-operated voice-enabled devices, such as hearables/wearables, smart speakers, and smart TV remotes, facilitating […]
Rad-hard 14-bit ADC optimized for apps in space
Renesas is excited to introduce the ISL73141SEH ADC, delivering the industry’s highest performance for radiation-hardened space applications. The ISL73141SEH ADC is one of the key signal-path building blocks in long-duration geosynchronous/geostationary Earth orbit (GEO) communication satellites and manned spacecraft, including lunar space missions. By delivering the industry’s best dynamic and static performance, the new 14-bit […]
