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Content tagged with Optoelectronic
posted in March 2011
8-bit MCUs provide cost effective, efficient high-brightness LED control
Design How-To  
3/31/2011   6 comments
High-brightness LEDs are rapidly gaining popularity in the automotive, consumer, and industrial markets. But controlling luminosity efficiently and reliably is not an easy task—power stage efficiency, thermal design, and EMC are some of the most critical design challenges.
Modern automotive voice control offers HMI convenience with safety
Design How-To  
3/28/2011   3 comments
When dense and hectic traffic situations do not permit any distraction to drivers, voice control is a useful complement to conventional HMIs. It can even give drivers control of an indispensable device for many—the smart phone—without compromising safety.
ZTE claims 10-Tbps data transmission record
News & Analysis  
3/23/2011   2 comments
Chinese telecommunications equipment company ZTE Corp. claims to have broken the world record for a single-channel data transmission with a rate of 10 terabits per second over 640-kilometers of optical fiber. This is the equivalent of sending 160 high definition movies every second.
Solid-state lighting coming into focus
Special Report  
3/21/2011   15 comments
The digital revolution is coming the global lighting industry as energy-efficient LED lamps replace incandescent, halogen and CFL bulbs, with OLED lights arriving by 2020.
Capacitive sensing applications widen
Design How-To  
3/18/2011   3 comments
HMI technologies have gone through a paradigm shift. This article highlights the importance of capacitive sensing in HMI evolution as well as applications beyond automotive infotainment systems.
Fragmented frame buffer graphics ease cluster display requirements
Design How-To  
3/10/2011   6 comments
A new approach removes the need to store complete frame buffers in RAM, thereby reducing RAM size needed to support large displays. This method also allows images to be stored at an optimum resolution, thus reducing the non-volatile memory requirement as well.
Bridgelux claims 'silicon' LED is commercial
News & Analysis  
3/9/2011   1 comment
Bridgelux Inc., a developer of semiconductor technology for solid-state lighting, has said it has demonstrated a light output of 135 lumens per watt from a GaN-on-Si LED. The company claimed that this is the first achievement of "commercial grade" performance from a silicon substrate LED, but said it may take two to three years for products based on the technology to come to market.


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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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