AD9834 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

The AD9834 is written to using a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards. The device operates with a power supply from 2.3 V to 5.5 V. The analog and digital sections are independent and can be run from different power supplies, for example, AVDD can equal 5 V with DVDD equal to 3 V. The AD9834 has a power-down pin (SLEEP) that allows external control of the power-down mode. Sections of the device that are not being used can be powered down to minimize the current consumption. For example, the DAC can be powered down when a clock output is being generated. The part is available in a 20-lead TSSOP. Applications Frequency stimulus/waveform generation Frequency phase tuning and modulation Low power RF/communications systems Liquid and gas flow measurement Sensory applications: proximity, motion, and defect detection Test and medical equipment

The AD9834 is a 75 MHz low power DDS device capable of producing high performance sine and triangular outputs. It also has an on-board comparator that allows a square wave to be produced for clock generation. Consuming only 20 mW of power at 3 V makes the AD9834 an ideal candidate for power-sensitive applications.

Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 75 MHz clock rate, resolution of 0.28 Hz can be achieved. Similarly, with a 1 MHz clock rate, the AD9834 can be tuned to 0.004 Hz resolution. Frequency and phase modulation are affected by loading registers through the serial interface and toggling the registers using software or the FSELECT pin and PSELECT pin, respectively.

The AD9834 is written to using a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards.

The device operates with a power supply from 2.3 V to 5.5 V. The analog and digital sections are independent and can be run from different power supplies, for example, AVDD can equal 5 V with DVDD equal to 3 V.

The AD9834 has a power-down pin (SLEEP) that allows external control of the power-down mode. Sections of the device that are not being used can be powered down to minimize the current consumption. For example, the DAC can be powered down when a clock output is being generated.

The part is available in a 20-lead TSSOP.

Applications
  • Frequency stimulus/waveform generation
  • Frequency phase tuning and modulation
  • Low power RF/communications systems
  • Liquid and gas flow measurement
  • Sensory applications: proximity, motion, and defect detection
  • Test and medical equipment
Features and Benefits
  • Narrow-band SFDR >72 dB
  • 2.3 V to 5.5 V power supply
  • Output frequency up to 37.5 MHz
  • Sine output/triangular output
  • On-board comparator
  • 3-wire SPI® interface
  • Extended temperature range: −40°C to +105°C
  • Power-down option
  • 20 mW power consumption at 3 V
  • 20-lead TSSOP
RF & Microwave
Reference Designs
Data Sheets
Documentnote
AD9834: 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS Data Sheet (Rev. D)PDF 569 kB
Application Notes
Documentnote
AN-1389: Recommended Rework Procedure for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0)PDF 133.7 K
AN-1248: SPI InterfacePDF 155 kB
AN-769: Generating Multiple Clock Outputs from the AD9540 (Rev. 0)PDF 0
AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (Rev. 0)PDF 221 kB
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)PDF 313 kB
AN-621: Programming the AD9832/AD9835PDF 202 kB
AN-557: An Experimenter's Project: (Rev. 0)PDF 368 kB
AN-419: A Discrete, Low Phase Noise, 125 MHz Crystal Oscillator for the AD9850PDF 101 kB
AN-237: Choosing DACs for Direct Digital SynthesisPDF 1156 kB
AN-423: Amplitude Modulation of the AD9850 Direct Digital SynthesizerPDF 37 kB
AN-345: Grounding for Low-and-High-Frequency CircuitsPDF 455 kB
AN-342: Analog Signal-Handling for High Speed and AccuracyPDF 468 kB
AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)PDF 115 kB
AN-280: Mixed Signal Circuit TechnologiesPDF 2101 kB
AN-1044: Programming the AD5932 for Frequency Sweep and Single Frequency Outputs (Rev. A)PDF 94 kB
AN-605: Synchronizing Multiple AD9852 DDS-Based Synthesizers (Rev. 0)PDF 527 kB
AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (Rev. 0)PDF 170 kB
AN-587: Synchronizing Multiple AD9850/AD9851 DDS-Based Synthesizers (Rev. 0)PDF 116 kB
AN-1070: Programming the AD9833/AD9834 (Rev. 0)PDF 127 kB
AN-953: Direct Digital Synthesis (DDS) with a Programmable Modulus (Rev. B)PDF 112 kB
AN-843: Measuring a Loudspeaker Impedance Profile Using the AD5933 (Rev. A)PDF 284 kB
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0)PDF 439 kB
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)PDF 262 kB
AN-847: Measuring a Grounded Impedance Profile Using the AD5933 (Rev. A)PDF 294 kB
AN-632: Provisionary Data Rates Using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR (Rev. 0)PDF 138 kB
AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS
AN-543 - Monaural FM Transmitter AN-543 - Stereo FM Transmitter		PDF 49.25 K
User Guides
Documentnote
UG-266: Evaluating the AD9834 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDSPDF 576 kB
Product Highlight
Documentnote
Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital ConvertersPDF 63 kB
Technical Books
Documentnote
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9834BRU Production20 ld TSSOPOTH 75-40 to 105C00N
AD9834BRU-REEL7 Production20 ld TSSOPREEL 1000-40 to 105C05.8N
AD9834BRUZ Production20 ld TSSOPOTH 75-40 to 105C5.895.01Y
AD9834BRUZ-REEL Production20 ld TSSOPREEL 2500-40 to 105C05.01Y
AD9834BRUZ-REEL7 Production20 ld TSSOPREEL 1000-40 to 105C05.01Y
AD9834CRUZ Production20 ld TSSOPOTH 75-40 to 105C6.855.62Y
AD9834CRUZ-REEL7 Production20 ld TSSOPREEL 1000-40 to 105C05.62Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-CN0304-SDZCombined Eval/CFTL board79Y
EVAL-SDP-CS1ZEval Controller Board49Y
Reference Materials
AD9834: 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS Data Sheet (Rev. D) ad9834
AD9834: 20 mW功耗、2.3 V至5.5 V、75 MHz的完整DDS (Rev. C) ad9834
AD9834参考代码 ad9834
AN-1389: 引线框芯片级封装(LFCSP)的建议返修程序 (Rev. 0) ad9540
AN-1389: Recommended Rework Procedure for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0) ad9856
AN-769: Generating Multiple Clock Outputs from the AD9540 (Rev. 0) ad9540
AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (Rev. 0) ad9540
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0) ad9856
AN-621: Programming the AD9832/AD9835 ad9540
AN-557: An Experimenter's Project: (Rev. 0) ad9540
AN-419: A Discrete, Low Phase Noise, 125 MHz Crystal Oscillator for the AD9850 ad9540
AN-237: Choosing DACs for Direct Digital Synthesis ad9856
AN-423: Amplitude Modulation of the AD9850 Direct Digital Synthesizer ad9540
AN-345: Grounding for Low-and-High-Frequency Circuits ad9220
AN-342: Analog Signal-Handling for High Speed and Accuracy ad1674
AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0) ad9856
AN-280: Mixed Signal Circuit Technologies ad1674
AN-1044: Programming the AD5932 for Frequency Sweep and Single Frequency Outputs (Rev. A) ad9830
AN-605: Synchronizing Multiple AD9852 DDS-Based Synthesizers (Rev. 0) ad9540
AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (Rev. 0) ad9540
AN-587: Synchronizing Multiple AD9850/AD9851 DDS-Based Synthesizers (Rev. 0) ad9540
AN-1248: SPI Interface ad9830
AN-772: 引脚架构芯片级封装（LFCSP）设计与制造指南 (Rev. 0) ad9540
AN-1070: Programming the AD9833/AD9834 (Rev. 0) ad9833
AN-1070: AD9833/AD9834的编程 (Rev. 0) ad9833
AN-769: 基于AD9540产生多时钟输出 (Rev. 0) ad9540
AN-1044: 将AD5932编程为扫频输出和单频输出 (Rev. 0) ad9830
AN-237: 放大器直接数字频率合成的DAC选型器应用漫谈 (Rev. 0) ad9540
AN-953: 具可编程模数的直接数字频率合成器(DDS) (Rev. 0) ad9540
AN-605: 同步多个基于DDS的频率合成器AD9852 (Rev. A) ad9540
AN-953: Direct Digital Synthesis (DDS) with a Programmable Modulus (Rev. B) ad9540
AN-939: 利用AD9912的超奈奎斯特频率操作得到高RF输出信号 (Rev. 0) ad9540
AN-927: 确定杂散来源是DDS/DAC还是其他器件(例如开关电源)[中文版] (Rev. 0) ad9540
AN-843: 用AD5933测量扬声器阻抗特性 (Rev. A) ad9830
AN-843: Measuring a Loudspeaker Impedance Profile Using the AD5933 (Rev. A) ad9830
AN-837: 基于DDS的时钟抖动性能与DAC重构滤波器性能的关系[中文版] (Rev. 0) ad9540
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0) ad9856
AN-823: 时钟应用中的直接数字频率合成器[中文版] (Rev. 0) ad9540
AN-851: 一种WiMax双下变频IF采样接收机设计方案[中文版] (Rev. 0) ad9540
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0) ad9856
AN-847: 用AD5933测量接地阻抗特性 (Rev. A) ad9856
AN-847: Measuring a Grounded Impedance Profile Using the AD5933 (Rev. A) ad9856
AN-345: 低频和高频电路接地 ad9540
AN-632: 利用AD9951 DDS作为ADN2812连续速率CDR的捷变参考时钟以提供数据速率 (Rev. 0) ad9540
AN-632: Provisionary Data Rates Using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR (Rev. 0) ad9540
AN-621: AD9832/AD9835的编程 (Rev. 0) ad9540
AN-342: 高速、高精度处理模拟信号[中文版] (Rev. 0) ad9540
AN-557: 实验者项目： (Rev. 0) ad9540
AN-419: 用于完整的直接数字频率合成器AD9850的分立、低相位噪声、125MH晶振 (Rev. A) ad9540
AN-423: 直接数字频率合成器AD9850的幅度调制 (Rev. A) ad9540
AN-587: 同步多个基于DDS的频率合成器AD9850/AD9851 (Rev. 0) ad9540
AN-543: 利用ADSP-2181 DSP和AD9850直接数字频率合成器产生高质量、全数字RF频率调制 (Rev. A) ad9540
AN-543 - Monaural FM Transmitter ad9540
AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS ad9540
AN-543 - Monaural FM Transmitter ad9540
UG-266: Evaluating the AD9834 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS ad9834
Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital Converters ad9856
CN-0156 ad9834
Basics of Designing a Digital Radio Receiver (Radio 101) ad9856
Digital Up/Down Converters: VersaCOMM™ White Paper ad9856
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