Technical Documentation

Application Notes (21)

AN-953: Direct Digital Synthesis (DDS) with a Programmable Modulus (pdf, 112 kB)
AN-939: Super-Nyquist Operation of the AD9912 Yields a High RF Output Signal (pdf, 221 kB)
AN-927: Determining if a Spur is Related to the DDS/DAC or to Some Other Source (For Example, Switching Supplies) (pdf, 170 kB)
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (pdf, 262 kB)
AN-847: Measuring a Grounded Impedance Profile Using the AD5933 (pdf, 294 kB)
AN-843: Measuring a Loudspeaker Impedance Profile Using the AD5933 (Rev. A, 6/07) (pdf, 284 kB)
AN-837: DDS-Based Clock Jitter Performance vs. DAC Reconstruction Filter Performance (pdf, 313 kB)
AN-823: Direct Digital Synthesizers in Clocking Applications Time (pdf, 115 kB)
Jitter in Direct Digital Synthesizer-Based Clocking Systems
AN-769: Generating Multiple Clock Outputs from the AD9540 (pdf, 0)
AN-632: Provisionary Data Rates Using the AD9951 DDS as an Agile Reference Clock for the ADN2812 Continuous-Rate CDR (pdf, 138 kB)
AN-621: Programming the AD9832/AD9835 (pdf, 202 kB)
This application note details how to program 5 MHz on the output of the AD9832/AD9835 parts. The frequency register,defer register,and command sequence are explained in detail.
AN-605: Synchronizing Multiple AD9852 DDS-Based Synthesizers (pdf, 527 kB)
AN-587: Synchronizing Multiple AD9850/AD9851 DDS-Based Synthesizers (pdf, 116 kB)
AN-557: An Experimenter's Project: (pdf, 368 kB)
Incorporating the AD9850 Complete DDS Device as a Digital LO Function in an Amateur Radio Transceiver
AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS (pdf, 49 kB)
- AN-543 - Monaural FM Transmitter (dsp, 20 kB)
- AN-543 - Stereo FM Transmitter (dsp, 25 kB)
AN-423: Amplitude Modulation of the AD9850 Direct Digital Synthesizer (pdf, 37 kB)
AN-419: A Discrete, Low Phase Noise, 125 MHz Crystal Oscillator for the AD9850 (pdf, 101 kB)
AN-345: Grounding for Low-and-High-Frequency Circuits (pdf, 455 kB)
Know Your Ground and Signal Paths for Effective Designs. Current Flow Seeks Path of Least Impedance-Not Just Resistance....
AN-342: Analog Signal-Handling for High Speed and Accuracy. (pdf, 468 kB)
Signal handling techniques for optimizing DAC and ADC performance.
AN-280: Mixed Signal Circuit Technologies (pdf, 2101 kB)
Considers problems which arise when reality (& Murphy) intervene in a design which otherwise seems satisfactory in terms of theory and modeling.
AN-237: Choosing DACs for Direct Digital Synthesis (pdf, 1156 kB)

Technical Articles (26)

400-MSample DDSs Run On Only +1.8 VDC
... This line of highly integrated DDS ICs features on-board RAM and crystal-oscillator circuitry to simplify the generation of agile and exotic waveforms. (Microwaves & RF Cover Story, 12/2002)
AD9858: Flexible Integrated Synthesizer For Wireless
... The most important feature of the AD9858 is its ability to change frequency in less than 5 ns, meaning that there is virtually no application left where you will need to go the expense of switching between two separate synthesizers. (AnalogZone, RF/IF Zone Products for the Week of 9/23/2002)
ADI Buys Korean Mobile TV Chip Maker
(EE Times, 6/7/2006)
Basics of Designing a Digital Radio Receiver (Radio 101) (pdf, 77 kB)
Clock Requirements For Data Converters
(Electronic Design, 2/2005)
DDS Applications
by Eva Murphy and Colm Slattery, Analog Devices, Inc. (EETimes, 9/26/2005)
DDS Circuit Generates Precise PWM Waveforms
by Colm Slattery, Analog Devices, Inc. (EDN, 10/2/2003)
DDS Design
By David Brandon, Analog Devices, Inc.
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.
(EDN, 5/13/2004)
DDS Device Produces Sawtooth Waveform
Ramp or sawtooth waveforms are useful for a broad range of applications, including automatic-test equipment, benchtest equipment, and actuator control. (EDN Design Idea, 7/10/2003)
DDS Device Provides Amplitude Modulation
by Mary McCarthy, Analog Devices, Inc.
(EDN, September 2, 1999)
DDS IC Initiates Synchronized Signals
(Microwaves & RF Cover Story, July 2005)
DDS IC Plus Frequency-To-Voltage Converter Make Low-Cost DAC
by Noel McNamara, Analog Devices, Inc. (EDN Design Idea, 2/5/2004)
DDS Simplifies Polar Modulation
By Ken Gentile, Analog Devices ... Basic modulation mathematics and DDS (direct digital synthesis) provide designers with an all-digital technique for generating polar-encoded carrier signals. (EDN, 8/5/2004)
DDS Tackles BaseStations Head On
... This High-Performance, Low-Power Integrated Hybrid Synthesizer Flaunts A 10-b Digital-To-Analog Converter That Operates At Up To 1 GSample/s.
(Wireless Systems Design, September 2002)
Digital Potentiometers Vary Amplitude In DDS Devices
(Electronic Design, Ideas for Design, 5/29/2000)
Digital Up/Down Converters: VersaCOMM™ White Paper (pdf, 97 kB)
Digital Waveform Generator Provides Flexible Frequency Tuning for Sensor Measurement
by Colm Slattery, Analog Devices (EDN, 12/17/2004)
Improved DDS Devices Enable Advanced Comm Systems
by Valoree Young, Analog Devices
(Electronic Products, September 2006)
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)
Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital Converters (pdf, 63 kB)
Revolutionize your radio architectures
Simple Circuit Controls Stepper Motors
by Noel McNamara, Analog Devices, Inc. (EDN Design Idea, 1/8/04)
Speedy A/Ds Demand Stable Clocks
by Jeff Keip, Analog Devices, Inc. (EE Times, 3/18/04)
Synchronized Synthesizers Aid Multichannel Systems
by David Brandon and John Kornblum, Analog Devices, Inc. (Microwaves & RF, 9/2005)
The Year of the Waveform Generator
(Test & Measurement World, 12/1/2005)
Two DDS ICs Implement Amplitude-shift Keying
by Noel McNamara, Analog Devices, Inc. (EDN Design Idea, 12/25/2003)
Video Portables and Cameras Get HDMI Outputs
By Doug Bartow, Analog Devices, Inc.