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pmod:pmodia:reference-manual [2021/05/14 23:03] – ↷ Page moved from reference:pmod:pmodia:reference-manual to pmod:pmodia:reference-manual Arthur Brownpmod:pmodia:reference-manual [2022/10/04 11:38] (current) – external edit 127.0.0.1
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 <WRAP center round important 60%> <WRAP center round important 60%>
-The Pmod IA is no longer in production. Once the current stock is depleted, it will be discontinued.+The Pmod IA is now retired and no longer for sale in our store. 
 </WRAP> </WRAP>
  
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 ==== Performing a Frequency Sweep ==== ==== Performing a Frequency Sweep ====
-Users can also perform a frequency sweep on an unknown impedance by programming an initial start frequency by the method described in the [[reference:pmod:pmodia:reference-manual#Calibrating_the_PmodIA|Calibration section]] and choosing the increment step size as well as the number of steps to take. The increment step size is represented by a 24-bit code stored in the Frequency Increment register and can be calculated by the following equation:+Users can also perform a frequency sweep on an unknown impedance by programming an initial start frequency by the method described in the [[pmod:pmodia:reference-manual#Calibrating_the_PmodIA|Calibration section]] and choosing the increment step size as well as the number of steps to take. The increment step size is represented by a 24-bit code stored in the Frequency Increment register and can be calculated by the following equation:
  
 {{ :pmod:pmod:ia:PmodIA_StepFrequencyCalculation.png?600 |Step Increment Calculation}} {{ :pmod:pmod:ia:PmodIA_StepFrequencyCalculation.png?600 |Step Increment Calculation}}
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 |  SEL   |  Logic Low   |  Logic low selects 100k Ohm gain setting resistor  | |  SEL   |  Logic Low   |  Logic low selects 100k Ohm gain setting resistor  |
  
-More detailed information about communicating with the PmodIA including sample data streams and detailed register information can be found in our [[reference:pmod:pmodia:start#additional_resources|user guide]]. Users that just want to get the Pmod up and running though are free to use our [[reference:pmod:pmodia:start#example_projects|example code]].+More detailed information about communicating with the PmodIA including sample data streams and detailed register information can be found in our [[pmod:pmodia:start#additional_resources|user guide]]. Users that just want to get the Pmod up and running though are free to use our [[pmod:pmodia:start#example_projects|example code]].
  
 Any external power applied to the %%PmodIA%% must be within 2.7V and 5.5V; however, it is recommended that Pmod is operated at 3.3V. Any external power applied to the %%PmodIA%% must be within 2.7V and 5.5V; however, it is recommended that Pmod is operated at 3.3V.
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 The schematics of the %%Pmod IA%% are available {{reference:pmod:pmodia:pmodia_sch.pdf|here}}. Additional information about the Impedance Converter including communication modes and specific timings of the chip can be found by checking out its datasheet [[http://www.analog.com/media/en/technical-documentation/data-sheets/AD5933.pdf|here]].  The schematics of the %%Pmod IA%% are available {{reference:pmod:pmodia:pmodia_sch.pdf|here}}. Additional information about the Impedance Converter including communication modes and specific timings of the chip can be found by checking out its datasheet [[http://www.analog.com/media/en/technical-documentation/data-sheets/AD5933.pdf|here]]. 
  
-More specific information about how to use the %%Pmod IA%% can be found by checking out our [[reference:pmod:pmodia:start#additional_resources|user guide]]. Example code demonstrating how to get information from the %%Pmod IA%% can be found [[reference:pmod:pmodia:start#example_projects|here]]. +More specific information about how to use the %%Pmod IA%% can be found by checking out our [[pmod:pmodia:start#additional_resources|user guide]]. Example code demonstrating how to get information from the %%Pmod IA%% can be found [[pmod:pmodia:start#example_projects|here]]. 
  
 If you have any questions or comments about the %%Pmod IA%%, feel free to post them under the appropriate section ("Add-on Boards") of the [[https://forum.digilentinc.com/|Digilent Forum]]. If you have any questions or comments about the %%Pmod IA%%, feel free to post them under the appropriate section ("Add-on Boards") of the [[https://forum.digilentinc.com/|Digilent Forum]].