Hi,
I am just trying to track the pins of FPGA used to interface with ADS4125EVEM.
I am surprisingly finding that, TRUE o/p of ADS4125 is connected to COMPLEMENT i/p of FPGA.
Example:
Differential ADS4125 |
ADS4125 Pin | Name | LVDS Connector Pin on ADS4125EVM | LVDS Connector Pin on TSW1200EVM | Name | FPGA Pin |
Differential FPGA |
True | 38 | D2-D3-P | 76 | 76 | Input9_M | F17 | Complement |
Complement | 37 | D2-D3-M | 78 | 78 | Input9_P | F16 | True |
True | 5 | CLKOUTP | 56 | 56 | DCLK_M | C20 | Complement |
Complement | 4 | CLKOUTM | 58 | 58 | DCLK_P | B19 | True |
If this is the connection then, I guess we need to invert the data before processing.
Am I going wrong somewhere ??
Regards
Prashant