... | @@ -14,8 +14,7 @@ and then on the "Documentation" tab). |
... | @@ -14,8 +14,7 @@ and then on the "Documentation" tab). |
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## The whole board
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## The whole board
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WholeBoard.jpg:WholeBoard-big.jpg
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*hello**
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On this card will be connected all the future time measurement elements.
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On this card will be connected all the future time measurement elements.
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So, the goal of this board is only to convert the analog data in
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So, the goal of this board is only to convert the analog data in
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... | @@ -43,7 +42,7 @@ see the SPI bus between the MicroZed and both the ADC. |
... | @@ -43,7 +42,7 @@ see the SPI bus between the MicroZed and both the ADC. |
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As the schematics for the two ADC are the same, we only put one of them
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As the schematics for the two ADC are the same, we only put one of them
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here.
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here.
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ADC1.jpg:ADC1-big.jpg
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/4333
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other ADC:ADC2-big.jpg
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other ADC:ADC2-big.jpg
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... | @@ -59,26 +58,28 @@ This has been done as well for the analog power lines as for the digital |
... | @@ -59,26 +58,28 @@ This has been done as well for the analog power lines as for the digital |
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ones. To have the lowest ESR and the highest SRF, we only use ceramic
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ones. To have the lowest ESR and the highest SRF, we only use ceramic
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capacitors (C0G/NP0 when possible, otherwise we use X7R).
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capacitors (C0G/NP0 when possible, otherwise we use X7R).
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The clock signal arrives from the splitter on a differential line.
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The clock signal arrives from the splitter on a differential
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line.
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-----
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-----
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## The clock splitter
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## The clock splitter
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clockSplitter.jpg:ClockSplitter-big.jpg
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This part is used to synchronise both the ADC by giving them the same
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This part is used to synchronise both the ADC by giving them the same
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clock signal. This clock splitter allows us to use different clock
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clock signal. This clock splitter allows us to use different clock
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frequencies in a range from 5 MHz to 125 MHz. This component can also
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frequencies in a range from 5 MHz to 125 MHz. This component can also
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filter the input clock signal. The parameters of that filter can be set
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filter the input clock signal. The parameters of that filter can be set
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using the `FILTA` and `FILTB` inputs. To be able to change the filter
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using the `FILTA` and `FILTB` inputs. To be able to change the filter
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and to adjust it to our needs, we put these inputs on jumpers.
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and to adjust it to our needs, we put these inputs on
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jumpers.
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## The power Supply
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## The power Supply
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PowerSupply.jpg:PowerSupply-big.jpg
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We need enough power to supply all the components on the board but also
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We need enough power to supply all the components on the board but also
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the MicroZed board. Furthermore, these components needs different
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the MicroZed board. Furthermore, these components needs different
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... | @@ -112,7 +113,7 @@ harmonics and then improve the noise rejection. |
... | @@ -112,7 +113,7 @@ harmonics and then improve the noise rejection. |
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## External connections
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## External connections
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FCI.jpg:FCI-big.jpg
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The connections to the MicroZed board are done via its FCI connectors.
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The connections to the MicroZed board are done via its FCI connectors.
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All these inputs can be configured to work in LVDS. As the output of our
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All these inputs can be configured to work in LVDS. As the output of our
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