gecko-addons:gecko3analog

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gecko-addons:gecko3analog [2017/03/10 10:01] – external edit 127.0.0.1gecko-addons:gecko3analog [2021/12/20 10:49] (current) – external edit 127.0.0.1
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 The GECKO3analog Board provides an audio codec, a 8-channel analog to digital converter and a 8-channel digital to analog converter. It could be used for digital audio processing and digital signal processing with access to the analog world in both directions. The GECKO3analog Board provides an audio codec, a 8-channel analog to digital converter and a 8-channel digital to analog converter. It could be used for digital audio processing and digital signal processing with access to the analog world in both directions.
  
-{{:gecko3:gecko3analog:gecko3analog_front_schema.jpg?700|}}+{{:gecko-addons:gecko3analog:gecko3analog_front_schema.jpg?700|}}
  
 ===== Blockdiagramm ===== ===== Blockdiagramm =====
-{{gecko3:gecko3analog:block.png?direct&700|Blockdiagram for GECKO3analog}}+{{gecko-addons:gecko3analog:block.png?direct&700|Blockdiagram for GECKO3analog}}
  
  
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 ==== Important remarks ==== ==== Important remarks ====
  
-{{:gecko3:gecko3analog:switch.png?200|positions of the switch}}+{{:gecko-addons:gecko3analog:switch.png?200|positions of the switch}}
   * The reference voltage of -2.5 V, needed to provide a bipolar DAC output, is not active by default. To activate the reference, you have to change the configuration of the DAC and activate his internal reference. Then an OPAMP invert the +2.5 V reference to -2.5 V. (For the activation of the internal reference in the DAC. (See page 31 of the data sheet)   * The reference voltage of -2.5 V, needed to provide a bipolar DAC output, is not active by default. To activate the reference, you have to change the configuration of the DAC and activate his internal reference. Then an OPAMP invert the +2.5 V reference to -2.5 V. (For the activation of the internal reference in the DAC. (See page 31 of the data sheet)
   * Be sure that the switch is on position 1 if you want to use the standard bus position. (See[[gecko3:system_bus:start|GECKO3 system bus]] for more informations)   * Be sure that the switch is on position 1 if you want to use the standard bus position. (See[[gecko3:system_bus:start|GECKO3 system bus]] for more informations)
-  * Have a look at the schematic to see how the IC's are connected to the FPGA. ({{:gecko3:gecko3analog:gecko3analog_schemata.pdf|Schematics}})+  * Have a look at the schematic to see how the IC's are connected to the FPGA. ({{:gecko-addons:gecko3analog:gecko3analog_schemata.pdf|Schematics}})
  
  
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 The selected audio codec is simple to use. The audio datas are transfered on a I<sup>2</sup>S-Bus and the configuration of the numerous options could be done over a SPI-Bus. The following Figure shows the block scheme of the Audio CODEC. The selected audio codec is simple to use. The audio datas are transfered on a I<sup>2</sup>S-Bus and the configuration of the numerous options could be done over a SPI-Bus. The following Figure shows the block scheme of the Audio CODEC.
  
-{{:gecko3:gecko3analog:wm8731_scheme.png?800|Block scheme of the Audio CODEC WM8731}}+{{:gecko-addons:gecko3analog:wm8731_scheme.png?800|Block scheme of the Audio CODEC WM8731}}
  
 The Datasheet of WM8731: [[http://www.wolfsonmicro.com/documents/uploads/data_sheets/en/WM8731.pdf|WM8731]] The Datasheet of WM8731: [[http://www.wolfsonmicro.com/documents/uploads/data_sheets/en/WM8731.pdf|WM8731]]
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 ===== Documents  ===== ===== Documents  =====
-  * {{:gecko3:gecko3analog:gecko3analog_assembly_drawings.pdf|Assembly drawings}} +  * {{:gecko-addons:gecko3analog:gecko3analog_assembly_drawings.pdf|Assembly drawings}} 
-  * {{:gecko3:gecko3analog:gecko3analog_assembly_list.pdf|Assembly list}}+  * {{:gecko-addons:gecko3analog:gecko3analog_assembly_list.pdf|Assembly list}}
  
-  * {{:gecko3:gecko3analog:gecko3analog_schemata.pdf|Schematic}} +  * {{:gecko-addons:gecko3analog:gecko3analog_schemata.pdf|Schematic}} 
-  * {{:gecko3:gecko3analog:gecko3analog_bom.pdf|Bill of Material}}+  * {{:gecko-addons:gecko3analog:gecko3analog_bom.pdf|Bill of Material}}
  
 ===== Pictures ===== ===== Pictures =====
  
-{{:gecko3:gecko3analog:gecko3analog_front_web.jpg?700|Front of the GECKO3analog}}+{{:gecko-addons:gecko3analog:gecko3analog_front_web.jpg?700|Front of the GECKO3analog}}
  
-{{:gecko3:gecko3analog:gecko3analog_back_web.jpg?700|Backside of the GECKO3analog}}+{{:gecko-addons:gecko3analog:gecko3analog_back_web.jpg?700|Backside of the GECKO3analog}}
  
-{{:gecko3:gecko3analog:gecko3analog_on_docking_with_main_web.jpg?700|GECKO3analog on the docking}}+{{:gecko-addons:gecko3analog:gecko3analog_on_docking_with_main_web.jpg?700|GECKO3analog on the docking}}
  
-{{:gecko3:gecko3analog:gecko3analog_on_robot_with_main_web.jpg?700|GECKO3analog on the robot}}+{{:gecko-addons:gecko3analog:gecko3analog_on_robot_with_main_web.jpg?700|GECKO3analog on the robot}}
  
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  • Last modified: 2021/12/20 10:49
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