Analog Devices: EVAL-AD9837SDZ Evaluation Board for the AD9837 Programmable Waveform Generator

Kit Overview

The EVAL-AD9837SDZEVAL-AD9837SDZ Evaluation board is used in conjunction with a EVAL-SDP-CB1ZEVAL-SDP-CB1Z SDP-B System Development Platform board (sold separately) available from Analog Devices, Inc and software allowing the AD9837AD9837 to be controlled from an SDP board. The USB-to-SPI communication to the AD9837 is completed using this Blackfin-based development board.A high performance, on-board 16 MHz trimmed general oscillator is available to use as the master clock for the AD9837 system. Various links and SMB connectors are also available on the EVAL-AD9837SDZ board to maximize usability.

The AD9837AD9837 is a 16 MHz 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 20 mW of power at 3 V makes the AD9837 an ideal candidate for power-sensitive applications.

The AD9837AD9837 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. The frequency registers are 28 bits wide: with a 16 MHz clock rate, resolution of 0.06 Hz can be achieved; with a 5 MHz clock rate, the AD9837 can be tuned to 0.02 Hz resolution.

Key Applications: Biomedical sensors, Bioelectrical impedance analysis, Electrochemical analysis, Impedance spectroscopy, Complex impedance measurement, Nondestructive testing