If you’re recovering from a respiratory problem, chances are you may have had your oxygen levels checked with a pulse oximeter. Pulse oximetry is the non-invasive measurement of the oxygen saturation (SpO2). Oxygen saturation is defined as the amount of oxygen dissolved in blood, based on the detection of Hemoglobin, Hb, and Deoxyhemoglobin, HbO2. The typical pulse … [Read More...]
FROM THE EDITORS
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Lee Teschler
APEC 2021 announces call for industry session proposals -
Aimee Kalnoskas
Dual-photodetector optical sensor module in 0.88mm package enables thinner wearable designs -
Martin Rowe
System tests 5G devices over the air -
Bill Schweber
Sorry, but it’s “Goodbye, Caboose” – EoT devices have made you obsolete, Part 2 -
Lynnette Reese
What is signal attenuation? -
Jeff Shepard
Rudiments of radiated EMI/EMC
Sponsored Content
Light-Cure Technology – Fueling the Automotive Electronics Revolution
Achieve Superior Performance Mile After Mile By Chris Morrissey, Sr. Manager, Automotive Electronics BD, Dymax Corporation The desire to put self-driving cars on the road and the movement toward … [Read More...]
FAQ
Sorry, but it’s “Goodbye, Caboose” – EoT devices have made you obsolete, Part 2
Part 1 of this article discussed the concept and basic implementation of the end of train (EOT) device. This part explores the EOT and its larger “ecosystem” in more detail. First, a bit of … Read
Sorry, but it’s “Goodbye, Caboose” – EoT devices have made you obsolete, Part 1
The venerable-freight train caboose of history has been made obsolete over the past few decades by sophisticated, rugged, electronic end-of-train (EOT) devices which do much more, much better, … Read
Hysteresis and its measurement
Hysteresis might be defined as something that happens when the physical state depends upon its history. The classic example of hysteresis in action is the residential thermostat. It has … Read
More antennas, faster data transfer
MIMO and beamforming provide increased data rates than you can get using single, omnidirectional signals. Antennas convert between radio waves propagating through space and electric currents … Read
Podcasts
The Future Car: A Siemens Podcast Gernot Spiegelberg on Musk, the migration to MaaS
Episode Info Gernot Spiegelberg: “There is only one person who’s dealt with this chicken and egg problem…it’s Elon Musk.” Dr. Spiegelberg, a researcher in Siemens AG Corporate Technology, joins Ed to discuss the move from manufacturing to MaaS, a future where avatars travel instead of people, and why the shift from internal combustion engines is […]
Focus on Analog ICs
RF/Microwave bandpass filter implementations, Part 3: Microstrip, Coaxial, and helical filters
Part 2 looked at two types of RF/microwave filters, but there are many more, including ceramic coaxial filters and helical filters. They are discussed in this part. Microstrip filters Microstrip … [Read More...]
52-GHz-bandwidth sockets handle Kyocera optical QFN packages
A new high-performance low-profile elastomer socket from Ironwood Electronics handles 0.5-mm-pitch QFN packages. The SG25-QFN-2017 socket is designed for a 4×4-mm package size and operates at … [Read More...]
The single-chip loudspeaker: First fully MEMS-based speakers target earphone apps
What is billed as the world’s first monolithic true MEMS speaker is just one millimeter thick and is said to deliver high fidelity, full-bandwidth sound and low total harmonic distortion (THD) for … [Read More...]
Focus on Microcontrollers
Dual-photodetector optical sensor module in 0.88mm package enables thinner wearable designs
Maxim Integrated Products’ MAXM86146 dual-photodetector optical sensor drop-in module includes built-in algorithms for heart-rate and oxygen-saturation (SpO2) monitoring, as well as advanced activity … [Read More...]
V2X software stack will enable advanced functionality on V2X chip
u-blox has partnered with Cohda Wireless, developer of connected autonomous vehicle software, to produce an advanced V2X solution for the cooperative intelligent transport market. Cohda’s … [Read More...]
All-optical HDMI 2.1 ICs feature low power consumption/idle mode for max energy efficiency
Artilux unveiled its Connect Series, the world’s first fully compliant all-optical HDMI 2.1 IC solutions based on CMOS technology. The data transfer speed, handshakes and protocols are compliant from … [Read More...]
Focus on Power Electronics
ZVS buck regulators handle 22 A in BGA tin-lead packages
Vicor has released two new ZVS buck regulators the PI3323 and the PI3325, with an extended operating temperature range of –55 to +120°C and an optional tin-lead 10 x 14mm SiP BGA package for Mil COTS applications. These high-density and … [Read More...]
Hall-effect current sensors first with zero drift
Texas Instruments introduced the industry’s first zero-drift Hall-effect current sensors. The TMCS1100 and TMCS1101 enable the lowest drift and highest accuracy over time and temperature while providing reliable 3-kVrms isolation, which is especially … [Read More...]
APEC 2021 announces call for industry session proposals
APEC 2021, to be held in Phoenix, Ariz., from March 21-25, 2021, has opened the portal for submission of Industry Session Proposals for the conference’s increasingly popular presentation series. The Industry Session component of the conference was … [Read More...]
Focus on 5G
System tests 5G devices over the air
Keysight’s S8708A Advanced Performance Test Toolset lets you test RF performance of 5G devices over both the FR1 and FR2 frequency bands. The tight integration of 5G devices such as handsets removes access points previously available in the RF … [Read More...]
More antennas, faster data transfer
MIMO and beamforming provide increased data rates than you can get using single, omnidirectional signals. Antennas convert between radio waves propagating through space and electric currents moving in a metal conductor. In early communication … [Read More...]
Measure mmWave signals with lower-frequency instruments
The D4000 downconverter from ThinkRF let’s you cover the popular 5G mmWave frequencies without the need re replace your spectrum analyzer. 5G New Radio uses mmWave frequencies in what’s called frequency range 2 (FR2), which includes the often … [Read More...]
Embedded Systems
SoC design software supports ASIL B, D safety levels in automotive apps
Synopsys announced new functional safety (FS) derivatives of its popular DesignWare ARC processor IP to simplify and accelerate the development of automotive system-on-chips (SoCs). The safety-enhanced processor portfolio, which includes the Synopsys … [Read More...]
VPX rugged video/graphics and GPGPU card target electronic warfare apps
Abaco Systems today announced the GR5 3U VPX rugged video/graphics and GPGPU card, further extending the range of options available and providing customers with the ability to choose exactly the right solution for the specific … [Read More...]
Platform helps implement security features in SoCs
SiFive Inc. announced the release of SiFive Shield, a class-leading new platform security architecture. SiFive Shield is an innovative new approach to SoC design, offering a whole SoC approach to security that enables secure lifecycle management, … [Read More...]
