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GC5322,pdf(Wideband Digital Pr

消耗积分:5 | 格式:rar | 大小:188 | 2010-07-08

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The GC5322 is a wideband digital predistortion transmit processor that includes a digital upconverter (DUC) block, a crest factor reduction (CFR) block, and a digital predistortion (DPD) block with its associated feedback chain and capture buffers. The GC5322 processes composite input bandwidths of up to 40 MHz and processes DPD sample rates of up to 140 MHz. The GC5322 DUC block accepts baseband signals over an interleaved parallel interface at a data rate of up to 93.3 MSPS. The GC5322 CFR block reduces the peak-to-average ratio (PAR) of wideband digital signals provided in quadrature (I/Q) format, such as those used in third-generation (3G) code division multiple access (CDMA) wireless and orthogonal frequency division multiple access (OFDMA) applications.

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