商品名称:fpga开发板 Altera 友晶 高速数字模拟转换 DCC-HSMC AD/DA子卡
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店铺名称: 成都思普瑞特科技 Altera 友晶 FPGA开发板
旺旺: 成都思普瑞特科技有限公司
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行业: 3C数码/
地址: 四川成都
店铺名称:成都思普瑞特科技 Altera 友晶 FPGA开发板
功能介绍
DCC-HSMC 接口连接示意图
The Data Conversion HSMC CD includes a reference design which contains two sine waves that are generated by two instances of the Altera numerically controlled oscillator (NCO) MegaCore. One of these oscillators is running at 10 times the frequency of the other, but both of them have the same amplitude with each one covering 13 bits of dynamic range. From these blocks, the two sine waves output are converted from two’s complement binary to unsigned binary format which then are added together. The combined sine wave signal of 14-bits dynamic range is sent to a 14-bit D/A converter. The analog output of a D/A converter is connected via SMA Cable with the analog input of a 14-bit A/D converter. The A/D converter’s digital output is looped back to the FPGA device. The A/D is configured by the dip switches to deliver the data in unsigned format. The converted loopback data is captured by an instance of the SignalTap II logic analyzer in the design for display and analysis.
The following figure below shows a high-level view of the reference design and how it interacts with the D/A and A/D converters on the Data Conversion HSMC in the following sections.
You can use MATLAB software to analyze the data.
The following figure below is generated using SignalTap to capture and analyze data.
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