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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD9838 is a 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 11 mW of power at 2.3 V the AD9838 is an ideal candidate for power-sensitive applications.
- Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 16 MHz clock rate, resolution of 0.06 Hz can be achieved; with a 5 MHz clock rate, the AD9838 can be tuned to 0.02 Hz resolution. Frequency and phase modulation are configured by loading registers through the serial interface and toggling the registers using software or the FSELECT pin and PSELECT pin, respectively.
- The AD9838 is written to via 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 AD9838 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 current consumption. For example, the DAC can be powered down when a clock output is being generated.
- The AD9838 is available in a 20-lead LFCSP_WQ package.
- **Applications**
- 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
- ### Features and Benefits
- 2.3 V to 5.5 V power supply
- MCLK speed: 16 MHz (B grade), 5 MHz (A grade)
- Output frequency up to 8 MHz
- Sinusoidal and Triangular Outputs
- On-board comparator
- 3-wire SPI interface
- Extended temperature range: −40°C to +125°C
- Power-down option
- 11 mW power consumption at 2.3 V
- 20-lead LFCSP
AD9838 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| Product Lifecycle Status | Recommended for New Designs |
Order guide
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- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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