Hi,
We are currently designing a board that will use ADS4149 and DAC5675A high speed data converters with a 200 MHz sample rate. We are know designing the layout of the board, but we are encountering technical problems that prevent us to match the length of the LVDS pairs. The 2 signals of one pair have the same length, but 2 different pairs don't have the same length. For instance the longest DAC LVDS pair is 11mm longer that the shortest one. Is it problem ? How close the LVDS pair length should be matched ? We weren't able to find information about the layout of these high-speed converters, is there any literature on the subject ?
Regards,
Maxime Puech