Optical Digital Signal Processing: Is That Light at the End of the Performance Tunnel? Design How-To 2/27/2004 Post a comment Driven by ever more complex algorithms and more and more channels for the processor to handle, the need for more speed is escalating rapidly. Conventional DSPs are pushing the silicon technology envelope to meet the challenge. The stress of keeping pace with the demands of compute-hungry applications is only getting more severe, however, which has led some engineers and venture capitalists to consider introducing a technological discontinuity. In this case, it is light-wave processing.
Roving eye for Mars forces CCD rethink News & Analysis 2/2/2004 Post a comment Behind the spectacular panoramic images beamed back from Mars in recent weeks is a full-custom CCD imaging chip designed to meet the stringent demands and environmental conditions of the Martian surface. The 1,024 x 2,048-pixel chip, which handles imaging for each of the nine cameras on both the Spirit and Opportunity rovers, mandated a rethinking of CCD design.
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.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments