Embedded DDS AD9833: Datasheet, Driver, SPI & Frequency Calculation

AD9833 DDS driver & SPI analysis

ruilixin6

Published August 24, 2026

Project description

【Preliminary Note】The original hardware example in this article was written based on the RP2040. The actual hardware used in this hands-on demonstration features the W55RP20 as the main controller chip. The circuit logic and UF2 flashing operation principles are universally applicable, with only the main controller model differing. The original chip model mentioned in the circuit descriptions below is provided for reference purposes only. AD9833 is a low‑power digital waveform generator (DDS) chip manufactured by Analog Devices. It is designed for applications requiring precise frequency and…

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