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Security Risks Grow With 5G


5G mobile phones can download a movie in seconds rather than minutes, but whether that can be done securely remains to be seen. What is clear from technology providers, though, is they are taking security very seriously with this new wireless technology. More data is in motion, and the value of that data is growing as users rely on mobile devices for everything from banking to automotive saf... » read more

Will Automotive Ethernet Win?


As internal combustion engines are replaced by electric motors, and mechanical linkages increasingly replaced by electronic messaging, an in-vehicle network is needed to facilitate communication. Ethernet, amended for automotive and other time-sensitive applications, appears to be the network of choice. But is that choice a done deal? And will Ethernet replace all other in-car networks? The ... » read more

Die-To-Die Chiplet Communication


At CadenceLIVE Americas 2020, one of the most viewed videos was by Samsung Foundry's Kevin Yee and Cadence's Tom Wong, titled "Let’s Talk About Chips (Chiplets), Baby…It’s All About D2D!" They went for this title because it reminded them of the lyrics of an '80s song...which they proceeded to sing. Process and packaging trends Tom led off with a look at the trends in semiconducto... » read more

Design For Narrowband IoT


Most low-power chips are designed with the assumption that batteries can be recharged or replaced, but there is a whole set of IoT devices under development that are expected to be always-on, communicate over a cellular infrastructure, and remain functional on a coin-sized lithium-ion battery for a decade or more. Welcome to the world of Narrowband IoT (NB-IoT), a 3GPP standard (also known a... » read more

Where 5G Works, And Where It Doesn’t


The rollout of 5G hype has begun. Companies are building 5G chipsets for mobile devices, and they are working on the infrastructure that will allow massive amounts of data to move freely between devices. There is little doubt that more bandwidth is required everywhere. Files are growing in size, particularly with streaming video and images and various flavors of AI and machine learning. This... » read more

The Power Of Integrating Bluetooth Low Energy Into SoCs


The Bluetooth Low Energy (BLE) specification, released in 2011, enables designers of System-on-Chips (SoCs) to maximize the battery life of IoT devices and minimize the implementation costs of wireless sensors and other “connected things” by maximizing sleep time and simplifying Radio operation. Because it is built on the established ecosystem of Bluetooth Classic for mobile phones and P... » read more

5G OTA Test Not Ready For Production


5G is poised to dominate the wireless world, but over-the-air (OTA) testing of 5G beamforming antennas is still not ready for volume production. Beamforming is a critical element in the millimeter wave version of 5G, because of the limitations of ultra-high-frequency signals. Unlike 4G and its predecessors, millimeter wave technology will not penetrate objects, so signals need to be directed... » read more

Miles Wide And High Security


Talk about security in autonomous vehicles seems to have subsided. It shouldn't, because the problem is far from solved. In fact, it's not just one problem. It's layers upon layers of problems spread out across all roadways, technology design houses, IP developers, network infrastructure, and the entire supply chain. And even though one vehicle's security may be bulletproof, it may be no... » read more

How Much Data Can Be Pushed Through Copper Wires?


As the amount of digital data grows, so do requirements on the speed of the transmission at all levels of the transmission chain—between dies in a shared package, between packaged chips inside a device, and between devices. The communication channels encountered at every stage of this communication are different in nature. Those between dies in a shared package, or between packaged chips in a... » read more

Chord Signaling by Generalizing Differential Signals


Chord signaling is a multi-wire signaling approach that is a generalization of differential signaling. With differential signaling, a single bit is transmitted on two correlated wires. In Chord signaling, n bits are transmitted on n+1 correlated wires. The number of wires, the Chordal code and the design of the multi-input comparators together. Background Companies connect chips in elect... » read more

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