AD9834 DDS device evaluation board circuit
This DDS device evaluation board circuit is designed using the AD9834 which is a 75 MHz low power DDS device capable of producing high performance sine and triangular outputs.
AD9834 DDS device evaluation board circuit 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 AD9834 an ideal candidate for power-sensitive applications.
The AD9834 is written to using a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards.
One of the areas where the AD9834 is suitable is in modulation applications. The part can be used to perform simple modulation such as FSK. More complex modulation schemes such as GMSK and QPSK can also be implemented using the AD9834.
In an FSK application, the two frequency registers of the AD9834 are loaded with different values. One frequency represents the space frequency, and the other represents the mark frequency. The digital data stream is fed to the FSELECT pin, causing the AD9834 to modulate the carrier frequency between the two values.
The AD9834 is also suitable for signal generator applications. With the on-board comparator, the device can be used to generate a square wave.
Using this evaluation board of the AD9834 DDS IC you can easy program this chip for the application you need , using software from analog website .