Overview
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
- See datasheet for additional features
Product Details
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
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
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AD9834: 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS Data Sheet (Rev. D)10/22/2002PDF569 kB
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AN-1389: Recommended Rework Procedure for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0)1/25/2016PDF133K
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AN-769: Generating Multiple Clock Outputs from the AD9540 (Rev. 0)2/14/2015PDF0
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AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (Rev. 0)2/14/2015PDF221 kB
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AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)2/14/2015PDF313 kB
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AN-557: An Experimenter's Project: (Rev. 0)2/14/2015PDF368 kB
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AN-419: A Discrete, Low Phase Noise, 125 MHz Crystal Oscillator for the AD98502/14/2015PDF101 kB
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AN-237: Choosing DACs for Direct Digital Synthesis2/14/2015PDF1156 kB
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AN-423: Amplitude Modulation of the AD9850 Direct Digital Synthesizer2/14/2015PDF37 kB
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AN-345: Grounding for Low-and-High-Frequency Circuits2/14/2015PDF455 kB
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AN-342: Analog Signal-Handling for High Speed and Accuracy2/14/2015PDF468 kB
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AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)2/14/2015PDF115 kB
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AN-280: Mixed Signal Circuit Technologies2/14/2015PDF2101 kB
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AN-1044: Programming the AD5932 for Frequency Sweep and Single Frequency Outputs (Rev. A)2/14/2015PDF94 kB
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AN-605: Synchronizing Multiple AD9852 DDS-Based Synthesizers (Rev. 0)2/14/2015PDF527 kB
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AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (Rev. 0)2/14/2015PDF170 kB
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AN-587: Synchronizing Multiple AD9850/AD9851 DDS-Based Synthesizers (Rev. 0)2/14/2015PDF116 kB
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AN-1248: SPI Interface7/2/2013PDF155 kB
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AN-1070: Programming the AD9833/AD9834 (Rev. 0)2/3/2011PDF127 kB
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AN-953: Direct Digital Synthesis (DDS) with a Programmable Modulus (Rev. B)3/27/2008PDF112 kB
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AN-843: Measuring a Loudspeaker Impedance Profile Using the AD5933 (Rev. A)6/27/2007PDF284 kB
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AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006PDF262 kB
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AN-847: Measuring a Grounded Impedance Profile Using the AD5933 (Rev. A)6/20/2006PDF294 kB
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AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP)2/1/2006
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AN-632: Provisionary Data Rates Using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR (Rev. 0)9/25/2003PDF138 kB
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AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS9/12/2002PDF49 K
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• AN-543 - Monaural FM Transmitter
DSP -
• AN-543 - Stereo FM Transmitter
DSP
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FAQs7/26/2017
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CN-0156: Amplitude Control Circuit for AD9834 Waveform Generator (DDS)7/12/2013PDF316 kB
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Two New Devices Help Reinvent the Signal Generator10/1/2014 Analog Dialogue
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DDS Devices Generate High-Quality Waveforms Simply, Efficiently, and Flexibly1/1/2012 Analog Dialogue
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Skin Impedance Analysis Aids Active and Passive Transdermal Delivery6/1/2009 Analog Dialogue
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Video Portables and Cameras Get HDMI Outputs4/13/2007
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Improved DDS Devices Enable Advanced Comm Systems9/1/2006
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ADI Buys Korean Mobile TV Chip Maker6/7/2006
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The Year of the Waveform Generator12/1/2005
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DDS Applications9/26/2005
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Synchronized Synthesizers Aid Multichannel Systems9/20/2005
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Direct Digital Synthesis (DDS) Controls Waveforms in Test, Measurement, and Communications8/1/2005 Analog Dialogue
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DDS IC Initiates Synchronized Signals7/20/2005
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Digital Waveform Generator Provides Flexible Frequency Tuning for Sensor Measurement12/7/2004
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DDS Simplifies Polar Modulation8/5/2004
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Ask The Application Engineer—33: All About Direct Digital Synthesis8/1/2004 Analog Dialogue
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DDS Design5/13/2004
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Integrated DDS Chip Takes Steps To 2.7 GHz4/28/2004
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Speedy A/Ds Demand Stable Clocks3/22/2004
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DDS IC Plus Frequency-To-Voltage Converter Make Low-Cost DAC2/5/2004
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Simple Circuit Controls Stepper Motors1/8/2004
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Two DDS ICs Implement Amplitude-shift Keying12/25/2003
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DDS Circuit Generates Precise PWM Waveforms10/2/2003
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DDS Device Produces Sawtooth Waveform7/10/2003
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400-MSample DDSs Run On Only +1.8 VDC12/1/2002
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Digital Potentiometers Vary Amplitude In DDS Devices5/29/2000
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DDS Device Provides Amplitude Modulation9/2/1999
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Basics of Designing a Digital Radio Receiver (Radio 101)3/6/1998
Software & Systems Requirements
Device Drivers
Tools & Simulations
Design Tools
ADIsimDDS (Direct Digital Synthesis)
ADIsimDDS uses mathematical equations to model and illustrate the overall performance of the selected device. ADIsimDDS calculates the required FTW, given the reference clock frequency and desired output frequency. This tool also models an estimate of the overall spectral performance, and allows the user to explore the effects of external reconstruction filters.
Reference Designs (2)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
AD9834 Discussions
RE: ADRV9002 Kernel Module Support
23 week(s) ago in Linux Software Drivers
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.