アナログ・デバイセズのDDS (ダイレクト・デジタル・シンセサイザ)&モジュレータは、幅広いソリューション・ポートフォリオを備えた、優秀なIC製品群です。位相ノイズの少ない、品質の高い信号の生成が可能という特長をもっているため、あらゆる高精度なクロック信号やAC信号ソースの生成に最適です。
ダイレクト・デジタル・シンセサイザ製品群は、デジタル・エンジンやD/Aコンバータ (DAC)、その他の各種機能(オンチップのコンパレータ、RAM、PLL、ミキサー、レジスタ)を内蔵し、高品質で任意の正弦波信号が生成可能です。通信からテスト機器、レーダーに至る各種システムで理想的な高速ロック時間を備えた周波数シンセサイザ・ソリューションです。
アナログ・デバイセズが提供するダイレクト・デジタル・シンセサイザの代表製品であるAD9851は、180MHzで動作し必要な機能がオールインワンで入っているため、簡単に使用できます。このICは、デジタル通信用のクロック再生およびロック回路や直交発振器、周波数/位相追従正弦波合成などの用途に適しています。また、その他の代表的な製品には、75MHzのDDSであるAD9834や400MHzのAD9953などがあります。
アナログ・デバイセズではDDS向けの設計支援ツールとして、ADIsimDDSをご用意しています。こちらも是非ご活用ください。
カタログ & ソリューション・ブリテン
各種データシート
FAQ / RAQ
チュートリアル & ウェブキャスト
Fundamentals of Frequency Synthesis, Part 2: Direct Digital Synthesis (DDS)
The second of a two-part series on frequency synthesis, with an introduction to Direct Digital Synthesis. We will give a basic review of how a direct digital synthesis system works, touching on the inner workings of the DDS engine at a relatively high level. We will also discuss the tradeoffs between PLL and DDS technology as a base choice for frequency synthesis needs.
Fundamentals of Frequency Synthesis, Part 1: Phased Locked Loops
The first of a two-part series on frequency synthesis, with an introduction to Phased Locked Loops. This webcast looks at the need for frequency generation, the techniques from the past present and future, and how to assess the performance of a frequency synthesis, and real world applications. Particular attention will be focused on Phase Locked Loops (PLL's) as frequency synthesizers.
Fundamentals of Clocks and Clocking
The webcast covers the fundamentals of clock synthesis and distribution. It covers the various types of phase-locked loops (PLLs), the key features of these devices, and which end market they are designed for. Concepts such as reference switchover, holdover, phase noise, jitter, output drivers, and signal integrity will be covered.
Low Power DDS: Benefits, Features, and Applications
Join us for this specially-produced webcast on DDS technology and ADI DDS products.
DDS Technical Articles
Improved DDS Devices Enable Advanced Comm Systems
by Valoree Young, Analog Devices (Electronic Products, September 2006)
Design A Clock-Distribution Strategy With Confidence
by Demetrios Efstathiou (Electronic Design, April 27, 2006)
The Year of the Waveform Generator
(Test & Measurement World, 12/1/2005)
DDS Applications
by Eva Murphy and Colm Slattery, Analog Devices, Inc. (EETimes, 9/26/2005)
Synchronized Synthesizers Aid Multichannel Systems
by David Brandon and John Kornblum, Analog Devices, Inc. (Microwaves & RF, 9/2005)
DDS IC Initiates Synchronized Signals
Microwaves & RF Cover Story, July 2005)
Understand the Effects of Clock Jitter and Phase Noise on Sampled Systems
... Much of your system's performance depends on jitter specifications, so careful assessment is critical.
by Brad Brannon, Analog Devices (EDN, 12/7/2004)
DDS Simplifies Polar Modulation
Basic modulation mathematics and DDS (direct digital synthesis) provide designers with an all-digital technique for generating polar-encoded carrier signals.
By Ken Gentile, Analog Devices (EDN, 8/5/2004)
Integrated DDS Chip Takes Steps To 2.7 GHz
This highly integrated 2.7-GHz source includes all essential DDS circuitry along with a clock driver, divider, high-resolution DAC, and combination phase detector/charge pump. (ED Online, April 2004)
DDS Design
Direct digital synthesizers are known for their highly accurate digital tuning, low noise figure, and phase-continuous frequency-hopping capabilities, which make them more attractive than alternative analog frequency-synthesis solutions.
By David Brandon, Analog Devices, Inc. (EDN, 5/13/2004)
DDS IC Plus Frequency-To-Voltage Converter Make Low-Cost DAC
by Noel McNamara, Analog Devices, Inc. (EDN Design Idea, 2/5/2004)
Low-power direct digital synthesizer cores enable high level of integration
Basics of Designing a Digital Radio Receiver (Radio 101)
By Brad Brannon, Analog Devices, Inc. (pdf, 77 kB)
Two DDS ICs Implement Amplitude-shift Keying
by Noel McNamara, Analog Devices, Inc. (EDN Design Idea, 12/25/2003)
パラメータ・サーチ
ツール
設計ツール
DDS Configuration Assistant
Determines tuning words and hex codes to program the DDS based on your output frequency, phase, and reference clock. Calculates actual output frequency and the Rset value required for your desired output current level. Illustrates harmonic images and spurs at the output, including the effect of a user-defined analog filter.
AD5933/AD5934 デモンストレーション & 設計ツール
A tool for demonstrating use of the AD5933/AD5934 Impedance Converter / Network Analyzer.
デバイス・ドライバ
AD5933 IIO Impedance Converter and Network Analyzer Linux Driver
AD9834 IIO Direct Digital Synthesis Linux Driver
AD9832 IIO Direct Digital Synthesis Linux Driver
FPGA HDL
BeMicro FPGA Project for AD9837 with Nios Driver
BeMicroFPGA Project for AD9838 with Nios Driver
BeMicro FPGA Project for AD9834 with Nios Driver
BeMicro FPGA Project for AD9833 with Nios Driver
IBIS Models
AD9912 (All Models/All Speed Grades)
AD9954 (All Models/All Speed Grades)
AD9959BCP (Valid for All Speed Grades)
AD9858 (All Models/All Speed Grades)
AD9852 (All Models/All Speed Grades)
Circuits from the Lab / 実用回路集
CN-0217:12 ビット・インピーダンス・コンバータを使用した高精度インピーダンス測定 CN-0186: Phase Coherent FSK Modulator CN-0156: Amplitude Control Circuit for AD9834 Waveform Generator (DDS) CN-0121: Synchronizing Multiple AD9910 1 GSPS Direct Digital Synthesizers CN-0109: 高性能ADC用の低ジッタ・サンプリング・クロックを発生させる回路
DDS ユーザー・ガイド
UG-364: Evaluating the AD5933 1 MSPS, 12-Bit Impedance Converter Network Analyzer
UG-313: Evaluating the AD9832 45 mW Power, 3 V to 5.0 V, 25 MHz Programmable Waveform Generator
UG-319: Evaluating the AD9835 200 mW Power, 5 V,50 MHz CMOS Complete DDS
UG-272: 低消費電力 12.65 mW、2.3 V~5.5 V、プログラマブル波形ジェネレータAD9833 の評価
UG-268: Evaluating the AD9838 11 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS
UG-269: 低消費電力 8.5 MW、2.3 V~5.5 V、プログラマブル波形ジェネレータAD9837 の評価
UG-266: 消費電力 20 mW、2.3 V~5.5 V、75 MHz のDDS AD9834 の評価
UG-208: Evaluation Board User Guide for AD9957
UG-207: Evaluation Board User Guide for AD9910
DDS アプリケーション・ノート
AN-1108: AD9832/AD9835 Programming Examples
AN-1044: Programming the AD5932 for Frequency Sweep and Single Frequency Outputs
AN-1070: Programming the AD9833/AD9834
AN-953: プログラマブルなモジュラスを採用したダイレクト・デジタル・シンセシス(DDS)
AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems
AN-924: Digital Quadrature Modulator Gain
AN-1053: AD5933 Evaluation Board Example Measurement
AN-0982: The Residual Phase Noise Measurement
AN-280: ミックスド・シグナル(デジタル・アナログ混在)回路の技術
AN-922: Digital Pulse-Shaping Filter Basics
| Part# | # Chan | Master Clock (MHz) | Resolution (Bits) | Fs Iout | Tuning Word Width (bits) | REF Clock Multiplier | I/O Interface | Compliance Range (V) | Automotive Qualified | Nominal Supply (V) | Power Dissipation | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AD9914 | 1 | 3.5GHz | 12bit | 20mA | 32bit | Yes | Parallel | 500mV | - | Single(+1.8), Single(+3.3) | - |
$ |
| AD9915 | 1 | 2.5GHz | 12bit | 20mA | 32bit | Yes | Parallel | 500mV | - | Single(+1.8), Single(+3.3) | - |
$ |
| AD9837 | 1 | 16MHz | 10bit | 3mA | 28bit | Yes | Serial | 800mV | - | Single(+2.3 to +5.5) | - |
$ |
| AD9838 | 1 | 16MHz | 10bit | 3mA | 28bit | Yes | Serial | 800mV | - | Single(+2.3 to +5.5) | 11mW |
$ |
| AD9912Reference Circuit Available | 1 | 1GHz | 14bit | 20mA | 48bit | Yes | Serial | 500mV | - | Multi(+1.8, +3.3) | - |
$ |
| AD9913Reference Circuit Available | 1 | 250MHz | 10bit | 4.6mA | 32bit | Yes | Parallel | 800mV | - | Single(+1.8) | - |
$ |
| AD9910Reference Circuit Available | 1 | 1GHz | 14bit | 20mA | 32bit | Yes | Parallel | 500mV | - | Single(+1.8), Single(+3.3) | - |
$ |
| AD9957 | 1 | 1GHz | 14bit | 20mA | 32bit | Yes | Serial | 500mV | - | Multi(+1.8, +3.3) | - |
$ |
| AD9911Reference Circuit Available | 1 | 500MHz | 10bit | 10mA | 32bit | Yes | Serial | 1.8V | - | Single(+1.8) | 351mW |
$ |
| AD5932 | 1 | 50MHz | 10bit | - | 24bit | Yes | Serial | - | - | Single(+2.3 to +5.5) | 40mW |
$ |
| AD5930 | 1 | 50MHz | 10bit | 3.1mA | 24bit | No | Serial | 800mV | - | Single(+2.3 to +5.5) | 40mW |
$ |
| AD5933Reference Circuit Available | 1 | 16.776MHz | 12bit | - | 27bit | - | Serial | - | - | Single(+5) | - |
$ |
| AD9958Reference Circuit Available | 2 | 500MHz | 10bit | 10mA | 32bit | Yes | Serial | 2.3V | - | Multi(+1.8, +3.3) | - |
$ |
| AD5934Reference Circuit Available | 1 | 16.776MHz | 12bit | - | 27bit | - | Serial | - | - | Single(+2.7), Single(+5) | - |
$ |
| AD9959Reference Circuit Available | 4 | 500MHz | 10bit | 10mA | 32bit | Yes | Serial | 2.3V | - | Multi(+1.8, +3.3) | - |
$ |
| AD9956 | 1 | 400MHz | 14bit | 10mA | 48bit | No | Serial | 2.3V | - | Multi(+1.8, +3.3) | 400mW |
$ |
| AD9859 | 1 | 400MHz | 10bit | 20mA | 32bit | Yes | Serial | 2.05V | - | Multi(+1.8, +3.3) | 171mW |
$ |
| AD9951 | 1 | 400MHz | 14bit | 10mA | 32bit | Yes | Serial | 2.05V | - | Multi(+1.8, +3.3), Single(+1.8) | 171mW |
$ |
| AD9952 | 1 | 400MHz | 14bit | 10mA | 32bit | Yes | Serial | 2.05V | - | Multi(+1.8, +3.3), Single(+1.8) | 171mW |
$ |
| AD9953 | 1 | 400MHz | 14bit | 10mA | 32bit | Yes | Serial | 2.05V | - | Multi(+1.8, +3.3), Single(+1.8) | 171mW |
$ |
| AD9954Reference Circuit Available | 1 | 400MHz | 14bit | 10mA | 32bit | Yes | Serial | 2.05V | - | Multi(+1.8, +3.3), Single(+1.8) | 220mW |
$ |
| AD9858Reference Circuit Available | 1 | 1GHz | 10bit | 40mA | 32bit | Yes | Parallel | 3.8V | - | Multi(+3.3, +5) | 2.5W |
$ |
| AD9833 | 1 | 25MHz | 10bit | 3mA | 28bit | No | Serial | 650mV | Yes | Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) | 27.5mW |
$ |
| AD9834Reference Circuit Available | 1 | 75MHz | 10bit | 3mA | 28bit | No | Serial | 800mV | - | Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5) | 40mW |
$ |
| AD9857 | 1 | 200MHz | 14bit | 20mA | - | Yes | Serial | 1V | - | Single(+3.3) | 2W |
$ |
| AD9852 | 1 | 300MHz | 12bit | 20mA | 48bit | Yes | Parallel | 1V | - | Single(+3.3) | 3.2W |
$ |
| AD9854 | 2 | 300MHz | 12bit | 10mA | 48bit | Yes | Parallel | 1V | - | Single(+3.3) | 4.2W |
$ |
| AD9856 | 1 | 200MHz | 12bit | 10mA | 12bit | Yes | Parallel | 1.5V | - | Single(+3) | 1.6W |
$ |
| AD9851 | 1 | 180MHz | 10bit | 20mA | 32bit | Yes | Parallel | 1.5V | - | Single(+3), Single(+3.3), Single(+3.6), Single(+5) | 650mW |
$ |
| AD9835 | 1 | 50MHz | 10bit | 4mA | 32bit | No | Serial | 1.35V | - | Single(+5) | 200mW |
$ |
| AD9832 | 1 | 25MHz | 10bit | 4mA | 32bit | No | Serial | 1.35V | - | Single(+3.3), Single(+3.6), Single(+5) | 120mW |
$ |
| AD9831 | 1 | 25MHz | 10bit | 4mA | 32bit | No | Parallel | 1.5V | - | Single(+3.3), Single(+3.6), Single(+5) | 120mW |
$ |
| AD9830 | 1 | 50MHz | 10bit | 20mA | 32bit | No | Parallel | 1V | - | Single(+5) | 300mW |
$ |
| AD9850 | 1 | 125MHz | 10bit | 20mA | 32bit | No | Parallel | 1.5V | - | Single(+3.3), Single(+5) | 480mW |
$ |
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