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| 两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 | ||
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dds_ad9837 [2020/11/25 17:35] gongyusu |
dds_ad9837 [2020/11/25 18:41] (当前版本) gongyusu |
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| ### 1. 主要功能特性 | ### 1. 主要功能特性 | ||
| + | * 10位精度的DAC | ||
| + | * 2个频率寄存器可以设置/切换 | ||
| + | * 2个相位寄存器可以设置/切换 | ||
| + | * SPI接口控制，最高可以支持到40MHz | ||
| + | * 工作电压: 3.3V | ||
| + | * 8Pin 插针或邮票孔封装 | ||
| + | * 板上U.FL射频连接器输出 | ||
| + | |||
| ### 2. 相关设计资料 | ### 2. 相关设计资料 | ||
| 行 26: | 行 34: | ||
| * SGM8061 - 500MHz，轨到轨输出的CMOS运算放大器 | * SGM8061 - 500MHz，轨到轨输出的CMOS运算放大器 | ||
| * 主要功能特性： | * 主要功能特性： | ||
| - | * Rail-to-Rail Output | + | * 轨到轨输出 |
| - | * Input Offset Voltage: 8mV (MAX) | + | * 输入偏移电压: 8mV (MAX) |
| - | * High Speed: | + | * 高速: |
| * 500MHz, -3dB Bandwidth (G = +1) | * 500MHz, -3dB Bandwidth (G = +1) | ||
| * 420V/μs, Slew Rate | * 420V/μs, Slew Rate | ||
| * 16ns Settling Time to 0.1% with 2V Step | * 16ns Settling Time to 0.1% with 2V Step | ||
| - | * Supply Voltage Range: 2.5V to 5.5V | + | * 供电范围: 2.5V to 5.5V |
| - | * Input Voltage Range: -0.2V to 3.8V with VS = 5V | + | * 输入电压范围: -0.2V to 3.8V with VS = 5V |
| - | * Excellent Video Specs (RL = 150Ω, G = +2): | + | * 优异的视频指标(RL = 150Ω, G = +2): |
| - | * Gain Flatness: 0.1dB to 80MHz | + | * 增益平坦: 0.1dB to 80MHz |
| - | * Diff Gain: 0.015%, Diff Phase: 0.05 Degree | + | * 差分增益: 0.015%, Diff Phase: 0.05 Degree |
| - | * Low Supply Current: 8.2mA (TYP) | + | * 低供电电流: 8.2mA (TYP) |
| - | * -40℃ to +125℃ Operating Temperature Range | + | * -40℃ to +125℃ 工作温度范围 |
| - | * Available in Green SOT-23-5 and SOIC-8 Packages | + | * 有绿色SOT-23-5和SOIC-8两种封装，在本设计中我们采用了SOT23-5的封装 |
| * [[http://cn.sg-micro.com/show-product-235.html|SGM8061的产品页面链接]] | * [[http://cn.sg-micro.com/show-product-235.html|SGM8061的产品页面链接]] | ||
| * [[http://cn.sg-micro.com/uploads/soft/20190902/1567405098.pdf|SGM8061的数据手册 PDF]] | * [[http://cn.sg-micro.com/uploads/soft/20190902/1567405098.pdf|SGM8061的数据手册 PDF]] | ||
| - | * SGM8061的数据手册 | + | |
| + | ### 4. 参考设计资源 | ||
| + | * Sparkfun上的[[https://www.sparkfun.com/products/11420|MiniGen - Pro Mini Signal Generator Shield]] | ||
| + | {{ :minigen.jpg |}}<WRAP centeralign>SParkFun基于AD9837制作的DDS信号发生器</WRAP> | ||
| + | * [[https://cdn.sparkfun.com/datasheets/BreakoutBoards/MiniGen.pdf|原理图]] | ||
| + | * [[https://cdn.sparkfun.com/datasheets/BreakoutBoards/MiniGen.zip|用Eagle工具设计的PCB的设计文件]] | ||
| + | * [[https://learn.sparkfun.com/tutorials/minigen-hookup-guide?_ga=2.152433145.1758724499.1606297177-2063033032.1574686890|使用指南]] | ||
| + | * [[https://github.com/sparkfun/MiniGen/tree/V_H1.0_L1.1.0|Github上的资源]] - 参考代码及设计文件 | ||
| + | * [[https://github.com/sparkfun/SparkFun_MiniGen_Arduino_Library/tree/V_1.1.0|Github上的库]] | ||