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Design Engineer

By R. Schreier and P. Hendriks


SUPERHETERODYNE receivers achieve high dynamic range, but typically require more power and are more complex than lower-performance direct conversion receivers. The AD9874 IF-digitizing IC eliminates this barrier by integrating all the blocks except the VCOs needed for IF-to-digital conversion in a narrowband superheterodyne receiver. This high level of integration is provided by a small device with low power consumption, without compromising dynamic range. Designers of next-generation digital radio communications systems are faced with many challenges as they strive to advance the state of the art in mobile radio systems. These challenges culminate in finding unique ways to reduce power consumption, physical size and equipment cost, while increasing performance, functionality and multi-mode configurability. A key strategy for achieving these goals is smart partitioning, namel

Year: 2013
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