If you need a strategy to lower a LTE/4G backhaul bill, then Aviat Networks may just have the webinar you are looking for. On Thursday March 17, 2011 at 4PM EDT, Aviat representatives will compare microwave backhaul to fiber alternatives. Participants will get to see a model for projecting the total cost of a backhaul solution.

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Spectrum Control

<p>There were a number of difficulties when implementing this architecture. The modulation/demodulation switches had to be designed to not contribute any dc offsets themselves. It was also a challenge to remove the switching spikes and noise from the chopped signal, which caused modulation clock feedthrough and intermodulation distortion at the output. Filtering the demodulated low-frequency signal helped reduce switching feedthrough, but often there remained a considerable amount of voltage spikes and noise on the output. This made chopper amplifiers suitable for only very-low-frequency or dc applications.</p>

If you need a strategy to lower a LTE/4G backhaul bill, then Aviat Networks may just have the webinar you are looking for. On Thursday March 17, 2011 at 4PM EDT, Aviat representatives will compare microwave backhaul to fiber alternatives. Participants will get to see a model for projecting the total cost of a backhaul solution.

The key enabling technology for platform-based design is Interface Synthesis. Interface Synthesis helps designers rapidly turnaround platforms for the many different derivatives for a particular product line. Hardware components such as processors, CPU and/or DSP, buses, memories, and peripherals may be upgraded or changed. For the software, Interface Synthesis automatically generates the memory map for registers and the software drivers to communicate between the hardware and software.

Our design methodology lets designers separate the function from the communications. This makes swapping out one piece of IP for another much easier. It also allows designers to quickly evaluate the potential of one piece of IP versus another. The old way of design was so cumbersome that once a major IP block was designed in, it was rarely swapped out because of the required interface re-design.


Here's how Interface Synthesis works. After performing analysis at the untimed C level to determine an initial system partition, the designer selects a base platform from the available range. He then assigns functional blocks to either hardware or software and selects abstract communications protocols applicable for each block interface. Then N2C will synthesize the interfaces between the hardware and other hardware and software elements, elaborating the abstract protocols into the full detailed bus protocol for the selected processor and bus. Automating this tedious process frees the designer to focus on more value-added design. An additional benefit is that designers can easily examine new SOC design variants created by choosing a different hardware-software partition or IP model.

With Interface Synthesis, the interface between the IP block and the target processor or system bus can be designed without any detailed knowledge of the processor or bus specification, protocols, timing diagrams, memory map, and interrupt vectors. All of this knowledge is captured as part of the base platform.

Figure 2 – Sample Platform Description


Interface Synthesis: Critical new extensions for platform-based design


Now, Interface Synthesis has been extended to enable the creation of platforms before the full functional specification is known. Platform creators can now run Hardware-Hardware Interface Synthesis, which allows extensible platforms to be created with very limited knowledge of the functional specification. The platforms can consist of multiple processors, multiple buses, DMA, Interrupt Priority, and Encoders. These platforms can now be taken all the way to implementation before the executable specification for the product functionality is finalized.

A platform-based design methodology impacts both the platform creator and the platform user. The platform users require the ability to easily add software content and/or more proprietary hardware blocks to develop their unique product. Specific new functionality helps the platform user in two ways. First, another extension to Interface Synthesis means that Hardware-Software Interface Synthesis is now enabled for multiple processor platforms. Second, Interface Synthesis now generates a set of files that allows application software to be mapped onto the platform very easily. We will now look at these two new capabilities in detail.

It has transformed us into a company that offers one of the broadest portfolios of circuit-protection products,” he said. We can now offer a total solution to the customer.”

The acquisition was a home run, both in technology and potential growth,” said Michael Schneider, an analyst at Robert W. Baird & Co., Milwaukee.

With the current acquisition and other modifications to their strategies, they have become an electronics supplier with a smaller automotive segment,” Schneider said. The electronics industry is rapidly rising as a percentage of their sales-it's their hottest market.

The marriage between the two sides has rounded out the product profile and technology profile of Littelfuse,” Schneider said. Littelfuse was already a leader in the market, and with this complete product portfolio, they're arguably the leader in the market across many different segments.”

In the long term, the acquisition allows us to use the different technology platforms to start combining the features available in the various technology sets to provide next-level solutions, including integrated products that provide both overcurrent and overvoltage protection,” said Mamoon Rashid, general manager of the suppression group. The strength of Littelfuse is its multiple technology platforms.”


In our opinion, Wall Street has a misperception regarding the current semiconductor and passive-component cycle. Compare this upturn in the semiconductor cycle with the last upturn in the industry. The previous upturn lasted more than four years. During this period, electronics distributors posted 16 quarters of better than 30% earnings growth. So far in this cycle, electronics distributors have posted only three quarters of more than 30% earnings growth. If this cycle continues like the last cycle, there could be two or more years of strong results before any signs of slowing occur.

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