{"product_id":"ad9833-dds-signal-generator-module-sine-square-wave","title":"AD9833 DDS Signal Generator Module – Sine \u0026 Square Wave SPI","description":"\n\u003ch2\u003eAD9833 Programmable DDS Signal Generator Module\u003c\/h2\u003e\n\u003cp\u003eTake full control of your waveform generation with the \u003cstrong\u003eAD9833 Programmable DDS Signal Generator Module\u003c\/strong\u003e. Designed for electronics engineers, hobbyists, and makers, this compact module uses the AD9833 Direct Digital Synthesis (DDS) chip to produce precise \u003cstrong\u003esine and square wave signals\u003c\/strong\u003e via a simple serial (SPI) interface. Whether you're building test equipment, audio synthesizers, or embedded control systems, this module delivers reliable, programmable frequency output with minimal external components.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAD9833 DDS IC:\u003c\/strong\u003e Industry-standard chip for accurate, stable waveform generation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Waveforms:\u003c\/strong\u003e Sine wave and square wave outputs selectable via software\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSerial SPI Interface:\u003c\/strong\u003e Easy integration with microprocessors including Arduino, STM32, PIC, and more\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable Frequency:\u003c\/strong\u003e Wide frequency output range controlled digitally — no analog tuning required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Small PCB module ideal for breadboarding and embedded projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Efficient design suited for battery-powered and portable applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.3V Compatible:\u003c\/strong\u003e Works seamlessly with 3.3V microcontroller logic levels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 module per order\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIC Chip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAD9833\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-wire SPI (Serial Peripheral Interface)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaveform Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSine Wave, Square Wave\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable via microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × AD9833 DDS Signal Generator Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis module is perfect for \u003cstrong\u003eelectronics students, embedded systems developers, RF engineers, and DIY enthusiasts\u003c\/strong\u003e who need a reliable, programmable frequency source. It's widely used in:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFunction generator builds\u003c\/li\u003e\n  \u003cli\u003eAudio frequency testing\u003c\/li\u003e\n  \u003cli\u003eSensor excitation circuits\u003c\/li\u003e\n  \u003cli\u003eMicrocontroller-based waveform projects\u003c\/li\u003e\n  \u003cli\u003eEducational electronics labs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What waveforms can the AD9833 DDS Signal Generator Module produce?\u003c\/h4\u003e\n\u003cp\u003eA: The AD9833 module can generate \u003cstrong\u003esine waves and square waves\u003c\/strong\u003e. The output waveform type is selectable via software commands sent through the SPI serial interface, making it easy to switch between waveform types in your code.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this AD9833 module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The AD9833 DDS Signal Generator Module is fully compatible with \u003cstrong\u003eArduino, STM32, PIC, and most other common microcontrollers\u003c\/strong\u003e that support the 3-wire SPI (Serial Peripheral Interface) protocol. Simply connect SCLK, SDATA, and FSYNC pins to your microcontroller's SPI pins and control it programmatically.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What voltage does this module operate at?\u003c\/h4\u003e\n\u003cp\u003eA: This module operates at \u003cstrong\u003e3.3V\u003c\/strong\u003e, making it directly compatible with 3.3V microcontroller boards. If using a 5V Arduino, a logic level converter is recommended to protect the module's inputs.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is DDS (Direct Digital Synthesis) and why is it useful?\u003c\/h4\u003e\n\u003cp\u003eA: \u003cstrong\u003eDirect Digital Synthesis (DDS)\u003c\/strong\u003e is a method of producing waveforms digitally by calculating and outputting signal values from a lookup table, controlled by a clock. DDS allows extremely precise, stable, and easily programmable frequency output — making the AD9833 module ideal for applications that require accurate and repeatable signal generation without manual analog tuning.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What waveforms can the AD9833 DDS Signal Generator Module produce?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The AD9833 module can generate sine waves and square waves. The output waveform type is selectable via software commands sent through the SPI serial interface, making it easy to switch between waveform types in your code.\"}}, {\"@type\": \"Question\", \"name\": \"Is this AD9833 module compatible with Arduino?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The AD9833 DDS Signal Generator Module is fully compatible with Arduino, STM32, PIC, and most other common microcontrollers that support the 3-wire SPI (Serial Peripheral Interface) protocol. Simply connect SCLK, SDATA, and FSYNC pins to your microcontroller's SPI pins and control it programmatically.\"}}, {\"@type\": \"Question\", \"name\": \"What voltage does this module operate at?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module operates at 3.3V, making it directly compatible with 3.3V microcontroller boards. If using a 5V Arduino, a logic level converter is recommended to protect the module's inputs.\"}}, {\"@type\": \"Question\", \"name\": \"What is DDS (Direct Digital Synthesis) and why is it useful?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Direct Digital Synthesis (DDS) is a method of producing waveforms digitally by calculating and outputting signal values from a lookup table, controlled by a clock. 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