AD9833 Programmable Waveform Generator Module

Multiple waveform generator has never been so easy.

Using this AD9833 Module you will be capable of producing sine, triangular, and square wave outputs and that too digitally. Yes you can connect this module to your favourite micro-controller using just 3 wire SPI Interface.

This module is based on Analog Devices AD9833 IC. AD9833 is a low power, programmable waveform generator capable of producing sine, triangular, and square wave outputs. Waveform generation is required in various types of sensing, actuation, and time domain reflectometry (TDR) applications. The output frequency and phase are software programmable, allowing easy tuning. No external components are needed. The frequency registers are 28 bits wide: with a 25 MHz clock rate, resolution of 0.1 Hz can be achieved; with a 1 MHz clock rate, the AD9833 can be tuned to 0.004 Hz resolution.

The AD9833 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 AD9833 has a power-down function (SLEEP). This function allows sections of the device that are not being used to be powered down, thus minimizing the current consumption of the part. For example, the DAC can be powered down when a clock output is being generated.

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Features

• Digitally programmable frequency and phase
  
• 12.65 mW power consumption at 3 V
  
• 0 MHz to 12.5 MHz output frequency range
  
• 28-bit resolution: 0.1 Hz at 25 MHz reference clock
  
• Sinusoidal, triangular, and square wave outputs
  
• 2.3 V to 5.5 V power supply
  
• No external components required
  
• 3-wire SPI interface
  
• Extended temperature range: −40°C to +105°C
  
• Power-down option
  
• Update Rate : 25(max)
  
• VOUT Maximum : 0.65V
  
• VOUT Minimum : 38mV
  
• VOUT Temperature Coefficient : 200°
  
• Input High Voltage : 1.7-2.8V
  
• Input Low Voltage : 0.5-0.7V
  
• Input Current : 10µA
  
• Input Capacitance : 3pF
  
• Operating temperature range is −40°C to +105°C; typical specifications are at 25°C

Related Information

• AD9833 Waveform Generator using Arduino