SIMPLE SWITCHER Nano Modules

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Texas Instruments has introduced four new SIMPLE SWITCHER nano power modules for space-constrained applications. The compact 17- and 5-V modules expand TI’s SIMPLE SWITCHER module portfolio to address 100-mA to 2-A industrial designs, such as servers, factory automation, test and measurement, … Continue reading

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3.3-V/5-V 4-Mbps CAN Transceiver

Linear LTC2875

Linear Technology Corporation introduces the LTC2875, an exceptionally rugged, high-voltage-tolerant controller area network (CAN) transceiver to greatly reduce field failures without the need of costly external protection devices. In practical CAN systems, installation cross-wiring faults, ground voltage faults or lightning … Continue reading

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New ENA Vector Network Analyzer Advances Performance & Speed

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Keysight Technologies recently announced the E5080A ENA vector network analyzer (VNA), which offers a valuable combination of RF measurement performance and speed, enabling a  10× improvement in test time. The new ENA uses the Keysight PNA- and PXI-Series software architecture, making it … Continue reading

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Pre-Compliance EMC Probe Kits

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Saelig Company recently announced the availability of the TBPS01-TBWA2 EMC Probe Kit (Singapore-based Tekbox Digital Solutions), which includes investigative near-field probes and a wideband amplifier to increase the versatility of economical spectrum analyzers to identify EMC issues. The TBPS01-TBWA2 EMC Probe Kit … Continue reading

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Quad Channel DPWM Step-Down Controller

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Exar Corp. has introduced the XR77128, a universal PMIC that drives up to four independently controlled external DrMOS power stages at currents greater than 40 A for the latest 64-bit ARM processors, FPGAs, DSPs and ASICs. DrMOS technology is quickly growing in … Continue reading

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Fundamentals of I/Q Signals

Figure 1: A mixer works by multiplying two sine signals of frequencies FRF and FLO. Thanks to the well-known trigonometric formula reminded here, the product is the sum of two other sine signals, respectively, at frequencies FRF + FLO and FRF – FLO.

When talking about frequency mixers, “I/Q” has nothing to do with an intelligence quotient. As Robert explains, the “I” stands for “in phase” and the “Q” is for “in quadrature.” In this article, he introduces you to the fundamentals of … Continue reading

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Client Profile: EarthLCD

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Circuit Cellar prides itself on presenting readers with information about innovative companies, organizations, products, and services relating to embedded technologies. This space is where Circuit Cellar enables clients to present readers useful information, special deals, and more. CLIENT EarthLCD.com www.earthlcd.com … Continue reading

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Frequency-Programmable Transceiver

LEMOS NiM1BR-high-res-fv

The new Multi-Use Radio Service (Mini-MURS) NiM1B-154.570-5-12.5-MURS is a frequency-programmable narrow band transceiver that offers a low-power, reliable data link in a Lemos /Radiometrix transceiver standard pinout and footprint. It’s suitable for licensed and unlicensed VHF allocations, FCC part 90 … Continue reading

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Clamshell Spring Pin QFN Socket

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Ironwood Electronics recently introduced a new QFN socket addressing high performance requirements for testing QFN devices – CBT-QFN-7039. The contactor is a stamped spring pin with 17-g actuation force per ball and cycle life of 50,000 insertions. The self inductance … Continue reading

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New IGBTs for Switching Frequencies from 50 Hz to 20 kHz

Infineon TO-247-4-L5

Infineon Technologies recently introduced a new class of low saturation voltage V CE(sat) IGBTs specifically optimized for low switching frequencies ranging from 50 Hz to 20 kHz. These can typically be found in applications such as uninterruptible power supply (UPS) as well … Continue reading

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High-Temperature Families of N-channel Power MOSFET with Integrated Driver

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X-REL Semiconductor has unveiled two new product families targeting power conversion applications in demanding markets including aerospace, industrial, hybrid and electric vehicles, transportation, geothermal, and oil and gas. The XTR20410 and XTR20810 product families comprise flexible devices with power N-channel … Continue reading

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Power Analyzer with Touch-Driven Scope Visualization

KeysightIntegraVision

Keysight Technologies recently introduced a power analyzer that combines accurate power measurements and touch-driven oscilloscope visualization capability in a single instrument. The IntegraVision power analyzer enables R&D engineers who are designing and testing electronic power conversion systems to access dynamic views … Continue reading

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H.264 Video I/O Companion Integrated Circuits

Microchip OS85621

Microchip Technology has announced the availability of the OS85621 and OS85623, which are the world’s first H.264 video I/O companion integrated circuits (ICs) optimized for the Media Oriented Systems Transport (MOST) high-speed automotive infotainment and Advanced Driver Assistance Systems (ADAS) network technology.  … Continue reading

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February Electrical Engineering Challenge Live (Sponsor: NetBurner)

Circuit Cellar’s technical editors purposely inserted an error in the schematic below. Find the error and submit your answer via the online Submission Form by the deadline: 2 PM EST on February 20. Circuit Cellar will randomly select 2 prize winners from the pool of respondents who submit the correct answer.

Put your electrical engineering skills to the test. The February Electrical Engineering Challenge (sponsored by NetBurner) is now live. This month, find the error in the schematic posted on the Challenge webpage for a chance to win a NetBurner MOD54415 … Continue reading

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The Future of Embedded Linux

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My first computer was a Cosmac Elf. My first “Desktop” was a $6,500 HeathKit H8. An Arduino today costs $3 and has more of nearly everything—except cost and size—and even my kids can program it. I became an embedded software … Continue reading

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