AD9833 Programming Manual

●GENERAL DESCRIPTION

●The AD9833 is a low power, programmable waveform generato 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.

●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

●10-lead MSOP package

●Qualified for automotive applications

●APPLICATIONS

●Frequency stimulus/waveform generation

●Liquid and gas flow measurement

●Sensory applications: proximity, motion, and defect detection

●Line loss/attenuation

●Test and medical equipment

●Sweep/clock generators

●Time domain reflectometry (TDR) applications