Basic Single-Pair Ethernet (SPE) requires at least a common mode inductor (CMI). When power over data line (PoDL) functionality is added, so is a differential mode inductor (DMI) and sometimes an isolation transformer. These magnetic elements interact and can reduce SPE performance. Correctly specifying them is important to ensure efficient operation and reliable data transfer. […]
Ethernet
Gigabit Ethernet switch feature two integrated PHYs for industrial automation
Microchip Technology announces the LAN9662 Gigabit Ethernet Switch with four ports, Audio-Video Bridging and Time Sensitive Network (AVB/TSN), two integrated 10/100/1000BASE-T PHYs and a 600 MHz Arm Cortex-A7 CPU subsystem. To support industrial Ethernet applications, the LAN9662 features a Real-Time Engine (RTE) that provides the ability to modify the Ethernet frame in flight, enabling faster cyclical data […]
What’s the difference between an SPE isolation inductor and a transformer?
Single-Pair Ethernet (SPE) isolation inductors and transformers are available in several configurations. They are used in applications where simple capacitive isolation is not sufficient. There are two types of SPE isolation transformers, simple chip transformer designs and so-called case transformers that can combine the functions of isolation with common mode rejection. This FAQ looks at […]
How do common mode inductors work in Single-Pair Ethernet?
Common mode inductors (CMIs) are important components in all Single-Pair Ethernet (SPE) designs and are part of the coupling and decoupling network (CDN) that connects the SPE electronics to the network cabling. This FAQ begins with a brief review of the operation of CMIs and then looks at how the CDN fits into SPE designs […]
How to specify differential mode inductors for Single-Pair Ethernet?
Differential mode inductors (DMIs) are important components for Power over Data Line (PoDL) and the related Single Pair power over Ethernet (SPoE) standards. This FAQ begins with a review of where DMIs fit into Single-Pair Ethernet (SPE), then compares PoDL and SPoE implementations and application targets. Coupling and decoupling DMIs play an important role in […]
What is Single-Pair Ethernet and PoDL?
Single-Pair Ethernet (SPE) is defined in IEEE 802.3 and adapts the basic Ethernet standard to use a single wire pair. Power over data line (PoDL) is sometimes referred to as power over Ethernet (PoE) adapted for SPE. That’s only partially correct, PoDL is optimized specifically for use in automotive and similar environments, and the newer […]
Gigabit Ethernet PHYs support both copper and fiber interfaces
Microchip Technology announces it has extended its radiation-tolerant (RT) Ethernet PHY devices with the new VSC8574RT PHY. The VSC8574RT PHY supports the Serial Gigabit Media Independent Interface (SGMII) and Quad Serial Gigabit Media-Independent Interface (QSGMII) to reduce the overall signal pins in the design and free up the host device. Space applications operate in environments […]
Module brings Wi-Fi, Bluetooth, Thread, and Matter to embedded designs
The IRIS-W1 module from u-blox lets IoT devices connect over Wi-Fi and Bluetooth while supporting Thread and Matter protocols. IoT module company u-blox has announced the IRIS-W1, which the company claims is the first stand-alone Wi-Fi module to combine dual-band Wi-Fi 6, Bluetooth LE (Low Energy) 5.3, and Thread including support for Matter protocols. Based […]
Single-Pair Ethernet devices simply integration into 10BASE-T1S network infrastructure
Microchip Technology Inc. announces new industrial-grade SPE products that will help fulfill SPE’s promise, from 10BASE-T1S MAC-PHYs that more easily connect edge IoT devices to the cloud, to industrial versions of its 100BASE-T1 Time Sensitive Networking (TSN) Ethernet PHY transceivers and switches that enable higher-speed applications across far-reaching Ethernet networks. Microchip’s new LAN8650 and LAN8651 10BASE-T1S MAC-PHY Ethernet Controllers with Serial […]
3U/6U OpenVPX computer boards, peripherals, ATR-style chassis target defense apps
General Micro Systems introduced a new product family of 3U and 6U OpenVPX computer boards, peripherals, and ATR-style chassis for use in U.S. Army ground, air, communications, and weapons systems. The “X9 Venom” family of 21 products will be available by early 2023, starting first with the 3U and 6U single-board computers (SBCs) based upon […]
