Author Archives: steve bush

ADC driving DC-10GHz differential amplifier has digital control

ADL5580 is a SiGe dc to 10.0GHz differential-in differential-out gain block from Analog Devices, which has a digital bus for signal path tweaking. “The amplifier offers a referred-to-input noise spectral density of 2.24nV/√Hz at 1GHz and is optimised for distortion performance over a wide frequency range, making the device ideal for driving high speed 12bit ...

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Harwin sponsors around-Britain rowing race

UK connector maker Harwin is to sponsor the 2022 GB Row Challenge, and to develop on-board water sampling equipment. “First held in 2005, the competition is a continuous circumnavigation of mainland Britain,” according to Harwin. “Starting at Tower Bridge on 12th June, the teams will embark on a 2,000 mile route.” Rowing is non-stop without ...

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UK Circuits expands SMD production line

PCB contract electronic manufacturer UK Circuits and Electronics Solutions (UKC) has added a surface mount component counter and a screen printer to its production line in Manchester. “During the pandemic we experienced an unprecedented period of growth and built a strong order book through both existing and new business,” said MD Marc. “Given our high levels of ...

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Digital pots interface directly with quadrature encoders, push buttons and MCUs

LSI Computer Systems (LSI/CSI) has created a family of 63 tap (6bit) digital potentiometers for direct connection to quadrature decoders, push buttons, GPIOs or SPI serial controls. Debounce circuits are included where electromechanical switches are expected, although external pull-up resistors must be added. “The LSI/CSI digital potentiometers are used as replacements for mechanical potentiometers and for potentiometer ...

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University of Oxford collaborates to secure routers

The University of Oxford has teamed up with UK organisation in an attempt to defend routers from malware infections. The project, known as Secure Networking by Design (SNbD), is a partnership between the University, TechWorks Hub and NquiringMinds. The aim is to put an existing TechWorks router security project called ManySecured on top of a combination of the ...

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4G antenna works on 50 x 40mm PCBs

Antenova is aiming a pet trackers, wearables and OBD-II designs with a surface-mount 4G antenna that can work on PCBs as small as 40 x 50mm. Called Pharaoh (part number SR4L073), it covers all 4G frequencies: 698-824MHz, 824-960MHz, 1,710-2,170MHz, 2.3-2.4GHz and 2.5-2.69GHz. Efficiency in the bands is ~20%, 35%, 70%, 60% and 60% respectively. “The performance of an ...

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What needs to be done to make useful Li-CO2 batteries?

Lithium-carbon dioxide batteries have theoretical promise, including in aviation where the lightweight materials are desirable – it might might make good use of Mars’ 96% CO2 atmosphere, for example. Headline figures are a theoretical specific energy density of 1,876Wh/kg and a ~2.8V discharge potential, but in practical terms the technology has not even reached infancy. To build a solid ...

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SMA to AMC micro-coax Wi-Fi 6 cable assemblies

Amphenol has introduced 1.13 and 1.32mm micro-coax SMA to AMC cables assemblies. “The configurations offer more efficient bandwidth sharing with excellent RF performance up to 9GHz,” accordingto the company. “The versatile nature of the SMA connector coupled with the small footprint AMC connector makes these assemblies ideal for IoT, antenna and Wi-Fi 6 applications.” The ...

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Connector for 430A

Lemo is accommodating cables from 10mm2 (AWG 8) to 50mm2 (AWG 1) and currents up to 430A in high-power additions to its M-series of connectors. There are uni-pole and multi-pole parts (right) for for single three-phase requirements. “These configurations were developed for high power distribution of electronic devices and electric drive vehicles,” according to the company. ...

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Littelfuse acquiring C&K Switches

Sun Capital Partners is selling C&K Switches to Chicago-based Littelfuse in a deal valued at $540m. “C&K and Littelfuse share a common vision, with both companies having almost 100 years’ experience in design and manufacture,” said C&K CEO Lars Brickenkamp (photo). “With many common customers, applications and focus markets, our two companies share market and cultural ...

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