Tiny transformer helps trim power supply noise
Murata’s L Cancel Transformer (LCT) neutralizes the equivalent series inductance (ESL) of a capacitor to optimize its noise-reducing capabilities. Leveraging nonmagnetic ceramic multilayer technology, the LCT improves power supply noise suppression,…
Position sensor suits vehicle safety systems
The Melexis MLX90427 magnetic position sensor is intended for applications requiring high automotive functional safety levels, such as steer-by-wire systems. It provides stray field immunity and EMC robustness, as well as SPI output. Additionally,…
DC/DC converters shrink car body electronics
ST’s A6983 step-down synchronous DC/DC converters provide space savings in light-load, low-noise, and isolated automotive applications. The series offers flexible design choices, including six non-isolated step-down converters in low-power…
Equalizer IC eases DOCSIS 4.0 CATV upgrades
A single-chip inverse cable equalizer, the QPC7330 from Qorvo allows CATV operators to upgrade their hybrid fiber coax (HFC) networks to DOCSIS 4.0. The QPC7330 streamlines field installation by eliminating the need for plug-ins or complicated…
Rack-mount oscilloscopes are just 2U high
The MXO 5C series of low-profile oscilloscopes from R&S provides a bandwidth of up to 2 GHz and either four or eight channels. Although they lack displays, the rack-mount scopes deliver the same performance as the MXO 5 series, while occupying…
The 2024 Google I/O: It’s (pretty much) all about AI progress, if you didn’t already guess
Starting last year, as I mentioned at writeup publication time, EDN asked me to do yearly coverage of Google’s (or is that Alphabet’s? whatevah) I/O developer conference, as I’d already long been doing for Apple’s WWDC developer-tailored…
Thin PCBs: Challenges with BGA packages
During electrical design process, certain design choices need to be made. One example is USB C type connector-based design with a straddle-mount connector. In such scenario, the overall PCB thickness is constrained while using a straddle-mount…
Bias for HF JFET
Junction field-effect transistors (JFETs) usually require some reverse bias voltage to be applied to a gate terminal.
In HF and UHF applications, this bias is often provided using the voltage across the source resistor Rs (Figure 1).
Figure…
Change of guard at Intel Foundry, again
A little more than a year after he took the reins of Intel’s ambitious bid for semiconductor contract manufacturing, Stuart Pann is retiring while handing over the charge to Kevin O’Buckley. The transition took place on Monday, 13 May, and…
Sampling and aliasing
If we want to take samples of some analog waveform, as in doing analog to digital conversions at some particular conversion rate, there is an absolute lower limit to the rate of doing conversions versus the highest frequency component of the…
Cancel thermal airflow sensor PSRR with just two resistors
Self-heated transistors used as thermal air flow sensors are a particular (obsessive?) interest of mine, and over the years I must have designed dozens of variations on this theme. Figure 1 illustrates one such topology seen here before. It…
Is Rohm closer to acquiring Toshiba’s power chip business?
As Rohm Semiconductor deepens its ties with Toshiba Electronic Devices & Storage, industry watchers wonder if Rohm is getting closer to acquiring Toshiba’s power chips business. It all began late last year when the two companies announced…
