Part 1 of this FAQ looked at the basic concept of active noise cancellation, how it might be implemented in principle using analog circuitry, and the harsh reality of actually providing the ANC function. Part 2 looks at modern ANC systems and how they function, as well as their practical issues. Q: Is ANC using […]
Consumer
Piezo ceramic harsh environment speaker features extended frequency range
Announced today by ISL Products International Ltd the PZ-94 harsh environment piezoelectric loudspeaker for broad frequency range applications. Ultra-thin, small, and lightweight, the piezo ceramic loudspeaker may be driven by low power. The speaker reproduces voice in the frequency response range of 450 HZ to 20 kHZ, and is tested to MIL–STD–810, method 509.1 (salt fog). The PZ-94 loudspeaker system features a […]
PCIe Gen 4-compliant clock buffers powered from single 1.5 V/1.8 V supplies
Silicon Labs has introduced a new family of low-power PCI Express (PCIe) Gen 1/2/3/4 clock buffers that provide ultra-low jitter clock distribution in 1.5 V and 1.8 V applications. With additive jitter performance of 40 fs RMS (typical), Silicon Labs’ new Si532xx PCIe clock buffers provide more than 90 percent margin to stringent PCIe Gen 3 […]
3D-depth sensing chip enhances depth quality and computing in cameras
Altek Corporation, a machine vision and AI(Artificial Intelligence) solution provider from Taiwan with advance depth algorithm and chip design technologies will unveil its latest 3D- Depth Sensing Chip AL6100 at CES 2018. “Our first generation real-time depth chip AL3200 launched in 2016 has achieved a remarkable success in millions of smartphone and portable devices worldwide. […]
Zero-drift, nanopower op amp works from 650 nA supply current
Texas Instruments introduced the first operational amplifier (op amp) to combine ultra-high precision with the industry’s lowest supply current. With exceptional power-to-precision performance, the LPV821 zero-drift, nanopower op amp enables engineers to attain the highest DC precision, while consuming 60 percent less power than competitive zero-drift devices. The LPV821 is designed for use in precision […]
Tiny image sensors deliver high-resolution in low-light environments
Two new ISOCELL image sensors from Samsung include the 1.28-micrometer (μm) 12-megapixel (Mp) ISOCELL Fast 2L9 with Dual Pixel technology, and the ultra-small 0.9μm 24Mp ISOCELL Slim 2X7 with Tetracell technology. Samsung ISOCELL image sensors fall into four categories—Fast, Slim, Bright and Dual—depending on their key attributes. As market demand for sleeker smartphones with advanced […]
