Description
AD9910 DAC Digital Frequency Synthesizer SPI Sine Wave Output High Speed 14 Bit DDS High Frequency Signal Generator
Product Description
The AD9910 is a direct digital frequency synthesizer (DDS) with a built-in 14 bit DAC that supports sampling rates up to 1 GSPS. AD9910 uses advanced DDS patented technology, which can greatly reduce power consumption without sacrificing performance. The DDS/DAC combination forms a digitally programmable high-frequency analog output frequency synthesizer that can generate frequency-agile sinusoidal waveforms at frequencies up to 400 MHz.
Users can access the same three signal control parameters used to control DDS, including: frequency, phase and amplitude. The AD9910 uses a 32-bit accumulator to provide fast frequency hopping and frequency tuning resolution. At 1 GSPS sampling rate, the tuning resolution is 0.23 Hz. This DDS also implements fast phase and amplitude switching.
Users can access the same three signal control parameters used to control DDS, including: frequency, phase and amplitude. The AD9910 uses a 32-bit accumulator to provide fast frequency hopping and frequency tuning resolution. At 1 GSPS sampling rate, the tuning resolution is 0.23 Hz. This DDS also implements fast phase and amplitude switching.
Specification
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item
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value
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Module model
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AD9910
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Module type
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digital synthesis frequency source
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Module power supply
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DC-5V
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Module current
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400mA (MAX); quiescent current 70mA (TYP) normal drive current 390mA (TYP)
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Module communication protocol
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SPI serial
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Module provides routines
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STM32F103RCT6
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Routine platform
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STM32F103X-M3 KEIL5 version source code
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Module system main frequency
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1000MHz (MAX)
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DAC resolution digits
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14 digits
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Phase accumulator bits
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32 bits
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Module output interface
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SMA; 24-hour salt spray anti-oxidation
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Module output signal
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sine wave; sine wave with 420MHz low-pass filter
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Module output channels
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2 channels; phase difference is 180 degrees, high-frequency output will have phase shift due to filter
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The signal characteristics of the module
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the sine wave has no coupling output; the output has its own DC component. If it is connected to the radio frequency equipment, please add a DC block, or you can directly use an oscilloscope to measure
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Highest main frequency output sine wave signal range
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1Hz-420MHz
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Output amplitude
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sine wave 760mVpp (MAX); sine wave amplitude decreases with increasing frequency
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Output impedance
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50 ohms
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Module features
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multiple; high-performance DDS sine wave signal generator, high-order elliptic filter, low-noise voltage regulator chip, etc.
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Module application
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multiple; frequency signal generation, sine wave signal generation, sensor excitation
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Module weight
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28.5g
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Module specifications
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75*60*13; length * width * height-PCB size
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Module interface type
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SMA signal output and external clock input, DC5.5 power socket, XH2.54-26PIN double-row pin data interface
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Installation Instructions
Precautions for using the module
(1) The current consumption of the module is large, and the power supply needs to have a certain margin. It is recommended to use 5V1A or more for power supply.
(2) Since the module is a high-precision device, in order to avoid unnecessary interference, it is recommended to use a linear power supply.
(3) It is recommended to use the SMA to BNC cable to directly observe the output signal for the output signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
(4) Due to the large power consumption and heat generation, pay attention to ventilation and heat dissipation for long-term work.
(5) If you need to simply test the function of the module, it is recommended to use it with the control board of our store. Power is supplied to the DDS module first, and then the power is supplied to the control board to generate a waveform. Long press the middle button to switch the function.
(2) Since the module is a high-precision device, in order to avoid unnecessary interference, it is recommended to use a linear power supply.
(3) It is recommended to use the SMA to BNC cable to directly observe the output signal for the output signal. Poor contact or poor quality wires may cause signal attenuation or excessive noise.
(4) Due to the large power consumption and heat generation, pay attention to ventilation and heat dissipation for long-term work.
(5) If you need to simply test the function of the module, it is recommended to use it with the control board of our store. Power is supplied to the DDS module first, and then the power is supplied to the control board to generate a waveform. Long press the middle button to switch the function.
Details Images