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AD5390 No Output Voltage

Question asked by safeB on Jun 19, 2015
Latest reply on Jun 21, 2015 by msamera

Hi

Recently, I'm using a AD5390 and I drive it by a "stm32f4 Discovery ARM" module. I write my code in Keil5 software. By using a Logic Analyzer hardware, I monitor all digital pins and signal values. Everything in the digital part of DAC chip-set is good. I send 24-bit data packs in SPI mode correctly and also receiving correct data when read a register of DAC chipset. But I have some wrong voltages in the DAC analogue output. When I choose internal reference in config register also I have no voltage on the reference pin.

 

Is there any sample code or a complete signaling picture from power on to output voltage settling?

 

Please Help me. I really confused by that.

Thanks

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