Implementing a Direct RF Transmitter for Wireless Communications

The application note summarizes the RF transmitter architectures of zero-IF, complex IF, high (real) IF, and direct RF before detailing the benefits of the direct RF transmitter for wireless applications, which have increased with the rise in smartphone and tablet computer use. As the application note shows, the superiority of a direct RF architecture with a high-performance DAC results in reduced component count and lower power dissipation while synthesizing very wideband signals. 

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