• Benoit Rat's avatar
    wrs3: update altium files for SCB v3.3 to v3.4 · a0f56caf
    Benoit Rat authored
    Schematics:
    ------------
    
    * C165 value changed from 100nF to 220nF
    * VCC_IN of CDCM61002 (IC13) connected to +3V3
    * RSTN pin of IC13 conected to a 47nF capacitor, not to +3V3
    * QDRII_200CLK moved to OUT3 (LVPECL) of AD9516.
    * Added LVDS termination resistor to adapt OUT3 to LVDS format
    * CLK_OUT (EXTREF125MHZOUT) connected to OUT9 (CMOS) of AD9516-4.
    * CLK_OUT transformer changed by 1:1 (WBC1-1LB)
    * R253 and R254 resistor (Ethernet sheet) changed to 0402 size in order
    to reduce items.
    * Changed EXTPPSIN input stage in order to add 50 R termination
    selectable by the FPGA.
    * Name of nets QDRII_CLK and QDRII_200CLK changed to REF_CLK and
    AUX_CLK.
    * Input EXTREF_125M removed.
    * QDRII IC42 chip removed.
    * Added ouput from FPGA latched by an AD9516 clock. This output uses
    the EXTREF_125M SMC connector:
    	* Added LVPECL latch
    	* Added LVPECL to LVTTL translator at the output
    	* CLK0 input of IC12 changed to OUT6 of AD9516
    	* FPGA VCCO Bank 26 changed to +2V5 to use LVPECL and LVDS
    * Removed the six 0R resistor at the inputs of the AD5662 DACs
    * FPGA Banks 26, 36 and 25 moved to "PFGA_Peripherals_Control" sheet.
    * Connected the 3 free buffers SN74LVT125DW to the EXTPPSOUT output
    signal.
    
    PCB:
    ------
    
    * GTX_DIFF signals routed on 90um/160um in order to reduce space,
    allowing to pass between vias
    * Some vias were moved from pads of some components to avoid the solder
    paste flooding by the vía.
    * IVT3200 VCO was moved to separate it of NAND Flash IC
    a0f56caf
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