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posted in April 2003
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It's a Buck; It's a Boost, No! It's a Switcher!
News & Analysis  
4/2/2003   Post a comment
The LSD cell has no hallucinogenic properties, insists Sanjaya Maniktala in this new tutorial article series on switching power supply design. Rather, if you can visualize the inductor (L), the switch (S) and the diode (D) associated with the power FETs, you're in a better position to see how they behave in switchmode regulator designs. There are four LSD cell types: Some are easier to turn on; some are easier to turn off. Guess which support buck typologies, which support boost. Planet Analog i
Hynix ruling could roil DRAM pricing worldwide
News & Analysis  
4/2/2003   Post a comment
DRAM prices in the U.S. could increase in the short term because of penalties being assessed against Hynix Semiconductor, but the rest of the world may see lower prices, some observers said this week.
Next-generation LCD fabs may trigger consolidation
News & Analysis  
4/2/2003   Post a comment
The growing number of Generation 5 and later LCD fabs will cause desktop LCD monitors and flat-panel TVs to continue dropping in price but likely will also give the upper hand to the top tier of suppliers. That was the consensus of speakers at the DisplaySearch U.S. Flat Panel Display Conference in La Jolla, Calif., Tuesday.
Using PLLs to Obtain Carrier Synchronization: Part 2
Design How-To  
4/2/2003   1 comment
Impairments in digital communication channels cause frequency and phase offset headaches for designers. Through the use of PLLs, designers can improve carrier recovery in a receiver architecture and, in turn, combat impairments.
Hynix slapped with 57% import duties
News & Analysis  
4/1/2003   Post a comment
The U.S. Commerce Department on Tuesday announced its preliminary ruling to impose a 57.37% countervailing duty on imported DRAMs of Hynix Semiconductor Co. because of illegal Korean government subsidies to the chipmaker.
Lockdown! Random Numbers Secure Network SoC Designs
News & Analysis  
4/1/2003   Post a comment
To generate truly random numbers in SoC designs, designers must embrace complexity and pick the one non-deterministic noise source, from a host of options, that best suits their design parameters.
RF Design: Will the Real Eb/N0 Please Stand Up?
Design How-To  
4/1/2003   Post a comment
Errors derived from uncertainties surrounding the location of system noise measurements can be overcome by getting back to basics.
Antennas 101
Design How-To  
4/1/2003   Post a comment
Far from a necessary evil, antennas are the key to increasing the capacity of next-generation networks.
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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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