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university:courses:electronics:electronics-lab-14 [20 Sep 2019 16:07] – [Unipolar output operation] Pop Andreeauniversity:courses:electronics:electronics-lab-14 [20 Sep 2019 16:12] – [Unipolar output operation] Pop Andreea
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 the loaded value can be transferred to the DAC register by strobing the LDAC pin. the loaded value can be transferred to the DAC register by strobing the LDAC pin.
 ===== Unipolar output operation===== ===== Unipolar output operation=====
-This mode of operation is the basic mode for AD5626.+This mode of operation is the basic mode for AD5626. You can verify the god functionality AD5626 according to the unipolar code table of the digital to analog convertor. 
 + 
 +{{ :university:courses:electronics:unipolar_code_table.png?700 |}} 
 +<WRAP centeralign > Figure 7.  Unipolar code table of AD5626</WRAP>
 ===Hardware setup=== ===Hardware setup===
-Connect the pins of AD5626 as shown in figure 7.+Connect the pins of AD5626 as shown in figure 8.
 {{ :university:courses:electronics:connections_ad5626.png?600 |}} {{ :university:courses:electronics:connections_ad5626.png?600 |}}
-<WRAP centeralign > Figure 7. Connections for Unipolar operation AD5626</WRAP>+<WRAP centeralign > Figure 8. Connections for Unipolar operation AD5626</WRAP>
  
-{{ :university:courses:electronics:ad5626_bb_bb.png?600 |}} +{{ :university:courses:electronics:ad5626_bb_bb.png?900 |}} 
-<WRAP centeralign > Figure 8. AD5626 breadboard connections</WRAP>+<WRAP centeralign > Figure 9. AD5626 breadboard connections</WRAP>
  
  
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 The signals of the SPI group channel should resemble the timing diagram of the AD5626 digital to analog converter. The signals of the SPI group channel should resemble the timing diagram of the AD5626 digital to analog converter.
  
-{{ :university:courses:electronics:timing_diagram.png?700 |}}  +{{ :university:courses:electronics:timing_diagram.png?900 |}}  
-<WRAP centeralign > Figure 9. AD5626 SPI timing diagram</WRAP>+<WRAP centeralign > Figure 10. AD5626 SPI timing diagram</WRAP>
  
 Now you should configure /LDAC and /CLR signals. Now you should configure /LDAC and /CLR signals.
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 The last step is to open oscilloscope and connect channel 1 to the output of AD5626. Enable channel 1 measurements and enter a value in the "Data" area of SPI. The last step is to open oscilloscope and connect channel 1 to the output of AD5626. Enable channel 1 measurements and enter a value in the "Data" area of SPI.
-In figure 11 you can see the output voltage if the data sent through SPI is 7FF.+In figure 12 you can see the output voltage if the data sent through SPI is 7FF.
  
 {{ :university:courses:electronics:vout_ad5626.png?900 |}} {{ :university:courses:electronics:vout_ad5626.png?900 |}}
-<WRAP centeralign > Figure 10. AD5626 output voltage for 7FF input.</WRAP>+<WRAP centeralign > Figure 12. AD5626 output voltage for 7FF input.</WRAP>
  
 =====Questions:===== =====Questions:=====
university/courses/electronics/electronics-lab-14.txt · Last modified: 25 Jun 2020 22:07 by 127.0.0.1

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