Infineon Technologies AG has expanded its XENSIV MEMS microphone lineup with the introduction of the IM72D128V and IM69D129F, two innovative digital PDM microphones designed for exceptional audio performance, energy efficiency, and robustness. Leveraging Infineon’s proprietary Sealed Dual Membrane (SDM) technology, both microphones achieve a high level of robustness against water and dust (IP57), making them […]
audio
ADCs target mid-tier audio market
Cirrus Logic has announced the release of four new audio converters for its Pro Audio product family: two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs). The components are designed for HiFi playback systems, installed audio infrastructure, professional audio equipment, musical instruments, and USB audio interfaces. The devices expand the company’s existing converter portfolio to […]
How op amps work and why you should use them: part 1
Operational amplifiers (op amps) may initially look intimidating, but with a bit of study, they can be easily understood and used in a variety of applications. Op amps can be thought of as a perfect amplifier in a black box. When we create a design using an op amp, we initially presume that the device […]
Buzzers cut through background noise up to 100 dB
Raltron announces the release of the RBE Series of electromagnetic buzzers. Designed for applications requiring high Sound Pressure Level (SPL) buzzers and alarms, the RBE Series offers some of the loudest devices in the industry, making them ideal for smoke detectors and fire alarm systems, industrial control panels and equipment, medical devices and healthcare systems, security […]
6MHz rail-to-rail op amps boost performance in industrial and automotive apps
STMicroelectronics is simplifying designers’ search for high-performing operational amplifiers (op amps) by introducing three new 6MHz rail-to-rail devices with strong all-around parameters including a wide operating voltage range and low noise. The TSB511, TSB512, and TSB514 are single, dual, and quad op amps, respectively. They can operate from a single supply in the range from 2.7V to […]
Compact micro buzzer features 2-mm profile, SPL of 65 dBA at 10 cm
CUI Devices’ Audio Group announced the introduction of a 3.2 mm x 3.2 mm magnetic transducer buzzer, making it among the smallest micro buzzers in the industry. As the latest addition to CUI Devices’ micro buzzers line, the CMT-322-65-SMT-TR features a low profile of 2 mm, surface mount packaging, and a sound pressure level (SPL) of 65 dBA at 10 […]
SMD Piezo sounder boasts louder output in a small footprint
Murata Electronics has newly developed the PKMCS0909E48H0-R1 SMD Piezo Sounder at 4.8 KHz which is a new and improved model from the current SMD sounder (PKMCS0909E4000-R1). The new sounder uses the same 9mm x 9mm footprint, is 1mm taller, uses new materials, operates at 800 Hz higher in frequency, and boosts the sound pressure level […]
Audio filters: Understanding acoustic waves – Part 2
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 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 […]
