Under the Hood: Evolution of the smart phone Teardown 3/3/2008 1 comment It is interesting to look at the different ways that HTC and Nokia, two companies that have very competitive and successful smart-phone offerings, arrived at their latest products. HTC used its background as a PDA manufacturer to create the TyTN 2, essentially incorporating phone functionality into a PDA. Nokia came into the smart-phone market from cell phones, so it needed to find ways to increase functionality without substantially increasing the size of its latest phone, the N95.
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