Design Center
In-Depth
The Hot 100 Electronic Products of 2008 12/15/2008
EDN's editors offer up their annual list of the year's 100 most significant ICs, components, buses, boards, EDA tools, power devices, test instruments, and more.Mysterious data errors 12/15/2008
Tales From The Cube: Input of 12 sequential 1s causes a data-collection system to output garbled data. This looks like a job for 12-gauge AWG wire.Measure power-supply-loop transfer 12/5/2008
Using a function generator and an oscilloscope, you can measure gain and phase shift versus frequency in a power supply's control loop.Stick to the schematic 10/30/2008
Tales From The Cube: How do you get a 1.6-GHz oscillation from a 1.2-GHz part? When you assigned an intern to build your circuit.Repeat offender 10/16/2008
Tales From The Cube: A T1 multiplexer generates an unrecognizable waveform when driving a new repeater. The repeater vendor repeatedly swears nothing is wrong, and the boss is getting anxious.A streamlined method of PCI Express interconnect compliance testing 8/20/2008
Time-domain S-parameter measurements can dramatically simplify routine differential insertion-loss measurements. This technique leverages the nearly controlled impedance path in a TDR instrument to reduce the calibration overhead compared with a vector-network-analyzer approach.Selecting op amps for high-speed ATE digitizers 7/31/2008
Current-feedback amplifiers can provide constant analog bandwidth as they operate in the different gain configurations found in automated test equipment.Measurement-based simulation simplifies analysis of lossy backplanes and cables 7/10/2008
A systematic approach uses DSO-based TDR and TDT measurements to construct models whose simulated response displays an uncanny resemblance to the response of the real hardware.Theory of relativity visits “real-time” clock 6/26/2008
TALES FROM THE CUBE: What would make a logic analyzer's internal clock run faster than real time, but only while being set?Unraveling the dynamic-range specification in modern spectrum analyzers 5/29/2008
Using a relatively simple chart to calculate dynamic range, along with speed and accuracy specifications, ensures that you choose the right spectrum analyzer and make appropriate price/performance trade-offs.ADVERTISEMENT
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