AnsweredAssumed Answered

AD7839 DAC

Question asked by parikhpranav on Feb 10, 2014
Latest reply on Feb 19, 2014 by KenK

Hello Mam/Sir,

 

I am using  AD7839 with a TI TMS320c28346 micro controller experimental kit. I am powering the VDD WITH +15V, VSS WITH -15V, VCC WITH +5V, AND DGND WITH -5V. I am using a 36(DAC side) to 25 (controller side) pin converter cable to communicate the controller with the DAC. I have connected pin one of 25 pin connecter with CL/WR, 2 TO 7 WITH THE DATA PIN, 8, 9, AND 17 WITH THE SELECTION BITS, AND 22 WITH GND OF THE CONTROLLER BOARD. THE TI CONTROLLER WORKS ON 3.2 VOLTS, i.e IT WILL GIVE 3.2 VOLTS WHEN ANY OF THE I/OS ARE ON. WHEN I CHECK THE VOLTAGE BETWEEN OUT GROUND AND VOUT A THE VOLTAGE THAT IT SHOWS IS 0 V.

 

1) iS THERE ANY THING ELSE THAT I NEED TO DO APART FROM THIS, TO MAKE THE DAC BOARD RUN.

2) ALSO I SEE NO LED INDICATION ON THE BOARD WHICH WOULD INDICATE THAT THE BOARD SYSTEM IS HEALTHY.

3) PLEASE PROVIDE ME WITH THE BASIC WIRING DETAILS AND THE STEP THAT I SHOULD FOLLOW FOR RUNNING THIS DAC BOARD.

 

REGARDS,

PRANAV PARIKH

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