by Alan Lowne, President, Saelig Co. Inc. It pays to do preliminary studies before sending products off to the test lab for electromagnetic compatibility problems. An engineer in a relatively small company usually must rely on experience and tribal knowledge to design a product that is electromagnetically compatible (EMC) with other equipment. Many designers and […]
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How to spec inductive coils
by Michael Harper, Coil Experts, LLC It pays RF designers to know a few things about the way coil-winding houses fabricate coils. Inductive coils are ubiquitous in any kind of RF or wireless circuit. But some of the tiny coils that characterize RF work can be challenging to produce. Custom coil designs often get sent […]
Wireless charging for your coffee maker
by Leland Teschler, Executive Editor, @DW_LeeTeschler Today’s average teenager has never seen a dial telephone. It looks as though cords that plug into ac outlets will soon look just as strange to high schoolers. That’s because wireless charging may become ubiquitous enough to make ac power cords obsolete for most kinds of electrical equipment rather […]
NXP Introduces World’s First RAIN RFID Tag
NXP Semiconductors N.V. (NASDAQ: NXPI) announced the introduction of its latest UCODE product, UCODE DNA, the world’s first UHF (ultra-high frequency) RAIN RFID tag IC to combine long-range read performance with cryptographic authentication. With this new tag IC developers no longer have to choose between contactless performance and the need for security in their applications; […]
How to use charge amplifiers
A charge amplifier is not the most common type of amplifier, but very useful in the right circumstances, it is really a current integrator which produces a voltage output proportional to the integrated value of the input current. This is useful when the sensor is capacitive such as a piezo device which could be a […]
Highly integrated IO-Link® temperature sensor
Maxim Integrated’s IO-Link smart temperature sensor reference design lowers cost and increases uptime for industrial control and automation. Designers can save power, cost, and space with the MAXREFDES42# IO-Link temperature sensor reference design (RD) from Maxim Integrated Products, Inc. (NASDAQ: MXIM). The new MAXREFDES42# IO-Link resistance temperature detector (RTD) joins the company’s portfolio of other […]
Implementation system for complex SoC designs
Cadence Design Systems announces the Innovus Implementation System for system-on-chip (SoC) development on advanced 16/14/10nm processes and established process nodes. Incorporating the company’s massively parallel architecture with proprietary optimization technologies, Innovus delivers 10 to 20 percent better power, performance and area (PPA) and up to 10x full-flow speedup and capacity gain. The parallel digital implementation incorporates multi-threading and distributed […]
This week’s top analog posts on EDABoard.com
Two-stage op amp used as comparator; differing results – I am implementing my two-stage op amp (with a compensating capacitor) as a comparator in my analog circuit. I run process corners TT, FF, and FS, and my analog circuit output is good but not in SF and SS. When I remove the compensating capacitor, the output […]
Level shifting digital logic signals
In the past digital systems were 5V and analog ones +/-15V or +/-12V. Nowadays analog systems are more likely to be single supply 5V, 3.3V or lower and digital circuitry is likely to be 3.3V, 2.5V, 1.8V, 1.2V or something in between. You might also have LVDS, DDR or other differential or single ended standards […]
Doherty PA reference design for small cell wireless
The CDPA35045 asymmetric Doherty PA reference design for the 3.5 to 3.7 GHz band provides increased wireless system capacity for both licensed wireless carrier services and unlicensed public use, such as Wi-Fi. Providing 10 W average output power and predistortion correctability, Doherty PA design uses 30-W CGHV27030S and 15-W CGHV27015S GaN HEMT devices, which can […]
