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Spectrum Analyzers

Modulating a Waveform

Webcast: Considerations in RF Frequency Direct Digital Synthesis
DDS Simplifies Polar Modulation (EDN, Aug. 2004)
DDS Device Provides Amplitude Modulation (EDN, September 2, 1999)
Digital Potentiometers Vary Amplitude In DDS Devices (Electronic Design, Ideas for Design, 5/29/2000)
Webcast: Options and Solutions for RF System Design
AN-543: High Quality, All-Digital RF Frequency Modulation Generation with the ADSP-2181 and the AD9850 DDS (pdf)
AN-922: Digital Pulse Shaping Filter Basics (pdf)
AN-924: Digital Quadrature Modulator Gain (pdf)
AN-0996: The Advantages of Using a Quadrature Digital Upconverter (QDUC) in Point-to-Point Microwave Transmit Systems (pdf)
The Care and Feeding of Digital Pulse Shaping Filters (RF Design, April 2002) (pdf)
AN-423: Amplitude Modulation of the AD9850 Direct Digital Synthesizer (pdf)
CN0114: Low Cost, High Voltage, Programmable Gain Instrumentation Amplifier Using the AD5292 Digital Potentiometer and the AD8221 In-Amp
CN0113: Variable Gain Inverting Amplifier Using the AD5292 Digital Potentiometer and the OP184 Op Amp
CN0112: Variable Gain Noninverting Amplifier Using the AD5292 Digital Potentiometer and the OP184 Op Amp
AN-582: Resolution Enhancements of Digital Potentiometers with Multiple Devices (pdf)