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频率合成技术在现代电子技术中具有重要的地位。在通信、雷达和导航等设备中，它可以作为干扰信号发生器；在测试设备中，可作为标准信号源，因此频率合成器被人们称为许多电子系统的“心脏”。直接数字频率合成（DDS——Digital Direct Frequency Synthesis）技术是一种全新的频率合成方法，是频率合成技术的一次革命。本文主要分析了DDS的基本原理及其输出频谱特点，并采用VHDL语言在FPGA上实现。对于DDS的输出频谱，一个较大的缺点是：输出杂散较大。针对这一缺点本文使用了两个方法
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直接数字频率合成器AD9852的原理及应用-Direct Digital Synthesizer AD9852 and application of the principle
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AD9954: 400 MSPS, 14-Bit, 1.8 V CMOS, Direct Digital Synthesizer. IBIS model.
The AD9954 is a direct digital synthesizer (DDS) that uses advanced technology, coupled with an internal high speed, high performance DAC to form a complete, digitally p
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AD9910: 1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer. IBIS model.
The AD9910 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC and supporting sample rates up to 1 GSPS.-AD9910: 1 GSPS, 14-Bit, 3.3 V CMOS Direct
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AD9912: 1 GSPS Direct Digital Synthesizer with 14-Bit DAC. IBIS model.
The AD9912 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC. The AD9912 features a 48-bit frequency tuning word (FTW), which can synthesize frequenci
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数字闹钟(Digital Clock)、直接数字频率合成器DDS（Direct Digital Synthesis）。-Digital Alarm Clock (Digital Clock), direct digital frequency synthesizer DDS (Direct Digital Synthesis).
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Designing of Direct Digital Synthesizer
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介绍直接数字频率合成器的论文，非常的详细，还有VHDL源代码-Introduction of Direct Digital Frequency Synthesizer papers, very detailed, as well as VHDL source code
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直接数字频率合成器（Direct Digital synthesizer）是从相位概念出发直接合成所需波形的一种频率合成技术。一个直接数字频率合成器由相位累加器、加法器、波形存储ROM、D/A转换器和低通滤波器（LPF）构成-Direct digital frequency synthesizer (Direct Digital synthesizer) is the concept of direct synthesis from the requirements phase of a wav
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The LogiCORE™ IP DDS (Direct Digital Synthesizer)
Compiler core sources sinusoidal waveforms for use in
many applications. A DDS consists of a Phase Generator
and a SIN/COS Lookup Table. These parts are available
individually or combined
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DDS直接数字频率合成器，能产生正弦波，方波，锯齿波，三角波四种波形，同时能在12864上显示波形类型和频率，用FPGA verilog实现的-DDS direct digital frequency synthesizer can produce sine, square wave, sawtooth wave, triangle wave four waveform, while in the 12864 on display the waveform type and frequency
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采用CORDIC算法的直接数字频率合成器的设计-CORDIC algorithm uses direct digital frequency synthesizer design
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