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
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.
- 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 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)
The ADMX2001 is a measurement module that simplifies the development of impedance measurement systems or can be used to enhance the capabilities of existing test platforms. Using high-performance mixed-signal and processing algorithms, the ADMX2001 can measure changes in capacitance as small as 0.1fF and resistance values up to 1GΩ, often required to test semiconductor devices, electronic components, and sensors. Moreover, built-in measurement algorithms enable the ADMX2001 to deliver fully calibrated complex impedance or admittance measurement results in various formats, including parallel and series combinations of resistance, capacitance, and inductance.
- Automated test equipment
- Semiconductor characterization
- Wafer acceptance test
- Electrical Impedance Spectroscopy
- Impedance network analysis
- Battery test
Features & Benefits
- Complex impedance measurements from 0.2Hz to 10 MHz
- High throughput
- Measurement time: 2.7ms
- 0.05% Basic Relative Accuracy
- Wide measurement range
- Resistance from 100μΩ to 1GΩ
- Capacitance from 100aF to 10F
- Inductance from 10pH to 100H
- Programmable test signal
- 16-bit amplitude adjustment up to 2.4V
- Frequency resolution of 0.2Hz
- 16-bit dc bias setting up to ±2.4V
- DC resistance measurements
- 18 impedance measurement formats for C, R, L, Z and Y
- Automated multi-point and parametric sweeps
- Calibration and fixture compensation functions
- Automated calibration routines for measurement traceability
- Calibration coefficient storage in non-volatile memory
- Compensation eliminates the effect of fixture parasitics
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.
The EVAL-CN0304-SDZ board is used in conjunction with a EVALSDP- CB1Z board available from Analog Devices, Inc. The USB to SPI communication to the AD9834 is completed using this Blackfin®-based development board.
A high performance, on-board 75 MHz trimmed general oscillator is available to use as the master clock for the AD9834 system. Various links and SMB connectors are also available on the EVALCN0304- SDZ board to maximize the usability.
Complete specifications for the AD9834 are provided in the AD9834 data sheet, available from Analog Devices. Consult the AD9834 data sheet in conjunction with this user guide when using the evaluation board.
Documentation & Resources
AN-1389: Recommended Rework Procedure for the Lead Frame Chip Scale Package (LFCSP) (Rev. 0)1/25/2016
AN-769: Generating Multiple Clock Outputs from the AD9540 (Rev. 0)2/14/2015
AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (Rev. 0)2/14/2015
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (Rev. 0)2/14/2015
AN-557: An Experimenter's Project: (Rev. 0)2/14/2015
AN-419: A Discrete, Low Phase Noise, 125 MHz Crystal Oscillator for the AD98502/14/2015
AN-237: Choosing DACs for Direct Digital Synthesis2/14/2015
AN-423: Amplitude Modulation of the AD9850 Direct Digital Synthesizer2/14/2015
AN-345: Grounding for Low-and-High-Frequency Circuits2/14/2015
AN-342: Analog Signal-Handling for High Speed and Accuracy2/14/2015
AN-823: Direct Digital Synthesizers in Clocking Applications Time (Rev. 0)2/14/2015
AN-280: Mixed Signal Circuit Technologies2/14/2015
AN-1044: Programming the AD5932 for Frequency Sweep and Single Frequency Outputs (Rev. A)2/14/2015
AN-605: Synchronizing Multiple AD9852 DDS-Based Synthesizers (Rev. 0)2/14/2015
AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (Rev. 0)2/14/2015
AN-587: Synchronizing Multiple AD9850/AD9851 DDS-Based Synthesizers (Rev. 0)2/14/2015
AN-1248: SPI Interface (Rev. A)7/2/2013
AN-1070: Programming the AD9833/AD9834 (Rev. 0)2/3/2011
AN-953: Direct Digital Synthesis (DDS) with a Programmable Modulus (Rev. B)3/27/2008
AN-843: Measuring a Loudspeaker Impedance Profile Using the AD5933 (Rev. A)6/27/2007
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006
AN-847: Measuring a Grounded Impedance Profile Using the AD5933 (Rev. A)6/20/2006
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP)2/1/2006
AN-632: Provisionary Data Rates Using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR (Rev. 0)9/25/2003
AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS9/12/2002
• AN-543 - Monaural FM Transmitter
• AN-543 - Stereo FM Transmitter
Two New Devices Help Reinvent the Signal Generator10/1/2014 Analog Dialogue
DDS Devices Generate High-Quality Waveforms Simply, Efficiently, and Flexibly1/1/2012 Analog Dialogue
Skin Impedance Analysis Aids Active and Passive Transdermal Delivery6/1/2009 Analog Dialogue
Video Portables and Cameras Get HDMI Outputs4/13/2007
Improved DDS Devices Enable Advanced Comm Systems9/1/2006
ADI Buys Korean Mobile TV Chip Maker6/7/2006
The Year of the Waveform Generator12/1/2005
Synchronized Synthesizers Aid Multichannel Systems9/20/2005
Direct Digital Synthesis (DDS) Controls Waveforms in Test, Measurement, and Communications8/1/2005 Analog Dialogue
DDS IC Initiates Synchronized Signals7/20/2005
Digital Waveform Generator Provides Flexible Frequency Tuning for Sensor Measurement12/7/2004
DDS Simplifies Polar Modulation8/5/2004
Ask The Application Engineer—33: All About Direct Digital Synthesis8/1/2004 Analog Dialogue
Integrated DDS Chip Takes Steps To 2.7 GHz4/28/2004
Speedy A/Ds Demand Stable Clocks3/22/2004
DDS IC Plus Frequency-To-Voltage Converter Make Low-Cost DAC2/5/2004
Simple Circuit Controls Stepper Motors1/8/2004
Two DDS ICs Implement Amplitude-shift Keying12/25/2003
DDS Circuit Generates Precise PWM Waveforms10/2/2003
DDS Device Produces Sawtooth Waveform7/10/2003
400-MSample DDSs Run On Only +1.8 VDC12/1/2002
Digital Potentiometers Vary Amplitude In DDS Devices5/29/2000
DDS Device Provides Amplitude Modulation9/2/1999
Basics of Designing a Digital Radio Receiver (Radio 101)3/6/1998
Software & Systems Requirements
Tools & Simulations
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)
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.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|AD9834BRUZ||Material Declaration||Reliability Data||20-Lead TSSOP|
|AD9834BRUZ-REEL||Material Declaration||Reliability Data||20-Lead TSSOP|
|AD9834BRUZ-REEL7||Material Declaration||Reliability Data||20-Lead TSSOP|
|AD9834CRUZ||Material Declaration||Reliability Data||20-Lead TSSOP|
|AD9834CRUZ-REEL7||Material Declaration||Reliability Data||20-Lead TSSOP|
|Wafer Fabrication Data|
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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.