| 154,9 → 154,12 |
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| Several SATA connectors and two miniSAS connectors are populated on this board. This set of connectors allows a connection of any number of ADC modules within the range of 1 to 8. ADC data outputs should be connected to the miniSAS connectors, while other supporting signals should be routed directly to SATA connectors on adapter. |
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| Differential pairs routed on PCB are not matched for lenghts. Althought inter differential pairs |
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| Signal configuration used in our trial design is described in the following tables. |
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| \secc Output data format |
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| \midinsert |
| 240,6 → 243,16 |
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| Both images confirms that ADC modules have input dynamical range 80 dB at least. |
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| ADCdual01A module has several digital data output formats |
| \begitems |
| * 1-lane mode |
| \enditems |
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| All of these modes are supported by module design. For discused data aquisition system the 1-lane mode was selected. 1-lane mode allows minimal number of diff pais between ADCdual01A and FPGA. |
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| ADCdual01A parameters can be set either by jupmper setup (refered as parallel pragramming in device's datasheet) or by SPI interface. SPI interface has been selected for our system, because papralel programming lacks of option of test pattern output setup. |
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| \chap Example of usage |
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| %\sec Simple polarimeter station |