Abstract
Digital Intermediate Frequency (DIF) is the key technology in software radio area. The DIF processing module of shortwave base on software radio technology has DIF processing to input signal, then complete Digital signal processing in digital area. In the DIF processing module, A/D and D/A are very important. It asks the A/D converter have enough working bandwidth (more than 2 GHz) and higher sampling velocity (60 MHz), and higher conversion digit to improve dynamic range. The new A/D converter AD9269 can meet the needs. This paper introduces the design of DIF processing module built on AD9269, and explains the interface design of DIF processing module.
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