EE-Evaluation Engineering articles from August 2004

EE-Evaluation Engineering archives from August 2004

A program with promise.(Editorial)
August 1, 2004... More than 4,000 Technology Student Association (TSA) members recently attended the association's 26th national conference in Nashville, TN, where they competed in more than 60 events designed to test their skills in comprehending and solving...

System tests full memory-device spectrum.(Product Briefing)
August 1, 2004... The Versatest Series Model V5400 Memory Test System features a single, scalable platform architecture for testing standard memories, reduced pin-count devices, BIST-enabled devices, and stacked memories. It incorporates up to 4,608 channels and...

System streamlines mixer and converter testing.(Product Briefing)
August 1, 2004... The Mixer and Converter Measurement System combines new measurement software with the 20-GHz IFR6813 Microwave Generator and the 20-GHz IFR6843 Microwave System Analyzer. It provides a 10-MHz to 20-GHz frequency range and key measurements...

DSO acquires signals to 12.5 Gb/s.(Product Briefing)
August 1, 2004... The TDS8200 Digital Sampling Oscilloscope, featuring system jitter of 70 GHz and uses the company's FrameScan[TM] acquisition mode to measure random and deterministic jitter. [ILLUSTRATION OMITTED] The modular architecture...

Scopes feature 30+ automated measurements.(Product Briefing)
August 1, 2004... The 3000 Series of Benchtop Oscilloscopes debuts with three instruments: the PicoScope 3204, 3205, and 3206. The scopes connect to a PC via USB 2.0, have a separate spectrum analyzer mode, and feature more than 30 automated measurements such as...

Board transforms PC into closed-loop platform.(Product Briefing)
August 1, 2004... The DT9842 DSP Fulcrum[R] II Series Data Acquisition Board transforms a PC into a closed-loop platform for test and control applications. Two models of the single 6U board are available: the DT9842/2 with two analog output channels and the...

DSO certified for USB 2.0 compliance testing.(Product Briefing)
August 1, 2004... The Infiniium 54852A DSO provides 2-GHz real-time bandwidth with a 10-GS/s sample rate on all four channels simultaneously and an acquisition memory depth of up to 1 Mpoints per channel. The 54852A and its companion 1130A InfiniiMax Probing...

Desktop tester addresses SOC devices.(Product Briefing)
August 1, 2004... The Fusion DX is an eight-slot desktop tester for system-on-a-chip (SOC) devices built on a scalable, single-platform architecture for both design validation and volume production testing. It offers up to 64 pins of digital capabilities...

What is a digitizer? However you have been digitizing your analog signals, it's time to consider new approaches.(Digitizers)
August 1, 2004... Like other words that have both a basic definition and more specialized technical connotations, the word digitizer means different things to different people. Although fundamentally a digitizer is any device that converts analog signals to a...

The challenges of memory mix test: the variety of different test methodologies combined with today's mixture of memory devices creates a complex test profile.(Memory Test)
August 1, 2004... The manufacturing test floor hums with activity; a range of memory devices is being tested on a variety of testers. There may be different combinations of DRAM, SRAM, flash, embedded, and stacked memories all requiring test on a single...

Expanding the frontiers of test: find out how PC-based test can play a major role in the quality of the food we eat.(PC-Based Test)
August 1, 2004... Providing the industry with knowledge-intensive solutions that address unmet needs is a major focus of E. I. DuPont Canada. So it was no surprise three years ago when DuPont's Agriculture & Nutrition Platform presented its partners with a new...

Testing: boundary scan style; Maybe you should try boundary scan testing now that your continuity buzzer has died.(Test Software Evaluation)
August 1, 2004... Most engineers are familiar with the theory of boundary scan testing, but what about having actual hands-on experience? In my own case, I had used scan-based testing several years ago in an ASIC design, but not for boards. For this reason, the...

Environmental Test Buyers Guide.
August 1, 2004... EE's annual Environmental Test Buyers Guide is a comprehensive, up-to-date listing of the companies that offer environmental testing products, equipment, and services. The guide is arranged in two sections. First is a product/company...

Protocol testing for the changing network: as networks evolve and new challenges arise, protocol analysis plays a bigger role in keeping a network running efficiently.(Protocol Analyzers)(Cover Story)
August 1, 2004... Offering more capacity and data services than ever before, CDMA networks are making the transition to next-generation systems. With the deployment of technologies like CDMA2000, mobile wireless communications are moving into the packet-switched...

Controlling the unwanted.(EMC Showcase)
August 1, 2004... If there's one electronic gadget that most of us own or at least have some familiarity with, it's the cell phone. Almost like the message proclaimed in an ad by a major credit card company, "You wouldn't leave home without it." Today's...

Filter array.(EMC Showcase)
August 1, 2004... The KNA21 Series is a multilayer EMI filter array that comprises four EMI filter circuits in a 2.0 mm X 1.25 mm X 0.85 mm package. With a cutoff frequency of 400 MHz, the KNA21 filter provides an attenuation of 15 dB in the frequency range of...

EM field indicator.(EMC Showcase)
August 1, 2004... The ScanEM Probe is a hand-held diagnostic tool that detects and measures electromagnetic emissions. Two interchangeable probes are included with the ScanEM, one for electric field measurements and one for magnetic field measurements. Audio and...

RF subminiature chokes.(EMC Showcase)
August 1, 2004... The 79F Series Chokes feature an inductance range of 0.10 [micro]H to 470 [micro]H, an operating temperature range of -55[degrees]C to 105[degrees]C, and dielectric withstand voltage of 500 V rms. Constructed with a ferrite bobbin core, the...

Portable field meter.(EMC Showcase)
August 1, 2004... The Smart Fieldmeter[TM] measures electromagnetic fields from 0.2 V/m to 600 V/m over the frequency range of 0.2 MHz to 3 GHz at a linearity of 1.5 dB. An isotropic probe provides omnidirectional operation, and the instrument can display field...

Absorbers.(EMC Showcase)
August 1, 2004... The Absorbing Wall Module can be used in a shielded room to absorb interfering signals to help reduce moding problems. The module eliminates moding hot spots and resonances while providing good wide-angle performance. The RF specification of a...

RF power amplifier.(EMC Showcase)
August 1, 2004... Producing 2,000 W over the frequency range of 2 MHz to 30 MHz, the Model 4044 Power Amplifier provides both input and output RF protection. Small-signal gain is +63 dB minimum with a flatness of [+ or -]2 dB maximum. The input VSWR is 2:1...

Noise-suppression filters.(EMC Showcase)
August 1, 2004... The BNX016-01 Series of leaded filters is designed to provide noise suppression in DC power supplies. Rated at 25 VDC and 15 A, the LC filter has an insertion loss of 40 dB minimum over the frequency range of 100 kHz to 1 GHz. The 11 mm X 12 mm...

Power amplifiers.(EMC Showcase)
August 1, 2004... Two broadband amplifiers, the 400S1G4 and the 450S1G3, can be used as drive amplifiers for high-power EMC testing applications as well as for testing communications components and subsystems. The 400S1G4 provides a minimum output of 375 W over...

Press-In EMI Filters.(EMC Showcase)
August 1, 2004... The 4306 Series Press-In EMI Filters have a minimum no-load insertion loss of 5 dB at 1 GHz and 20 dB at 10 GHz for the 4306-000 and 40 dB at 1 GHZ and 50 dB at 10 GHz for the 4306-002. The capacitance value for the 4306-000 is 10 pF and 2,700...

Fingerstock gaskets.(EMC Showcase)
August 1, 2004... Track-mount fingerstock gaskets are available in a variety of sizes and platings and accommodate gap closures of 0.05" to 0.25". Suitable for bidirectional applications, the gaskets can be ordered as a single finger or in lengths up to 24". The...

Power Entry Module.(EMC Showcase)
August 1, 2004... The PCB-mounted DC22 Power Entry Module features internally wired AC inlet and on/off switch functions and a rear cover to minimize emissions to other components. The rocker-style switch is recessed to avoid accidental actuation and available...

Elastomer gaskets.(EMC Showcase)
August 1, 2004... Designed for applications requiring environmental sealing as well as EMI shielding, the ElectroSeal D Strips provide as much as 120 dB of shielding effectiveness for a 10-GHz plane wave (when measured to MIL-STD-285) over the temperature range...

Power connector.(EMC Showcase)
August 1, 2004... The ACARA family of EMI filtered power connectors is rated at 65 A or 100 A at 50[degrees]C. The connectors are designed to provide EMI suppression to 10 GHz and available in a variety of capacitance values. The current-carrying conductor of...

China's compliance requirements for WLAN products: an international EMC compliance expert explains how to achieve access to today's Chinese WLAN market.(EMC Applications)
August 1, 2004... The adoption of a Chinese wireless local area network (WLAN) standard known as GB15629.11-2003 (AQSIQ/SAC 2003 Notice 110) was announced jointly on Nov. 26, 2003, by the General Administration of Quality Supervision, Inspection and Quarantine...

Portable datalogging device.(Data Acquisition)
August 1, 2004... The pdaDAQ/100 Mobile Device collects waveforms, reads and outputs digital data, or reads counter values and features four analog input channels in the single-ended mode and two channels in the differential mode. It has 12-b resolution, a...

High-current module.(Data Acquisition)
August 1, 2004... The 3.25" X 3.125" X 1" PMD-1024HLS I/O Module for the Personal Measurement Device[TM] family of interfaces provides 24 b of high-current digital I/O and is compatible with any USB port. The module offers up to 15 mA of source and 64 mA of sink...

VXI Power Supply.(Instrumentation)
August 1, 2004... The DH-242 Power Supply features eight independently regulated outputs that deliver full-rated current. The maximum output is 1,488 W at 45[degrees]C with 400 lfm of air and typical efficiency of 90%. A 12-VDC output runs system fans. Each...

Multifunction safety analyzers.(Instrumentation)
August 1, 2004... The OMNIA 8100 Series includes 4-in-1, 5-in-1, and 6-in-1 electrical safety compliance analyzers featuring enhanced graphic LCDs. The OMNIA 4 Model 8104 contains AC hipot, DC hipot, ground bond/continuity, and insulation resistance tests. The...

Protocol analyzer.(Communications Test)
August 1, 2004... The FCTracer 4G Fibre Channel Protocol Analyzer combines display, analysis, capture, and long-term reporting tools to accommodate traffic at 1-, 2-, and 4-Gb/s signaling speeds. The plug-in module, designed for the company's Universal Protocol...

VoIP network software.(Communications Test)
August 1, 2004... The PsyQ VoIP Network Management Tool uses a 1-5 mean opinion score scale to analyze the voice quality experienced by all users in a network in real time. It rates the perceptual voice quality of live calls on the network in 10-s intervals and...

Noise and Jitter Analyzer.(Communications Test)
August 1, 2004... The PN9500 Wideband Noise and Jitter Analyzer measures phase noise at up to 500 MHz offset. The modular design can be configured to measure any kind of frequency source from 2 MHz to 140 GHz. It completes 10 averages of 1 kHz to 40 MHz offsets...

VXI mainframe.(PC Test)
August 1, 2004... The 3U Model 1266 is a portable, four-slot VXI mainframe with 250 W of total power and 175 W of usable power. A two-speed fan system designed to optimize acoustic noise and cooling delivers air to the modules. A monitoring system checks VXI...

Arbitrary Waveform Generator.(PC Test)
August 1, 2004... The UF6031 Arbitrary Waveform Generator PCI Card with 14-b DACs generates complex analog signals at rates of 125 MS/s on two channels. Up to 512 MB of onboard memory allows each channel to create signals of up to 256 MS. Three...

Wafer-level test management.(Software)
August 1, 2004... TestPlanManager[TM], an addition to the Silicon Insight[TM] product line, formulates wafer-level electrical test plans. It automates the process of applying tests to process technology development test chips created with the company's...

VXI Data Acquisition.(Software)
August 1, 2004... DAC Express 3.0 Data Acquisition Software supports scanning (logging) and high-speed digitizing (recording) on the same time base without any programming. Data-export functions transfer data to analysis programs including Excel and MatLab. This...