The JESD204C specification does not define specific serial line rates for any JESD204C link, but a valid range of line rates from 312.5 Mbps to 32.5 Gbps. The JESD204C core supports 8B10B linecoding at line rates from 1 Gbps to 16.375 Gbps (depending on the part and speed grade selection) and 64B66B linecoding at line rates from 1 Gbps to 32.5 Gbps (depending on the part and speed grade selection). In most instances, the serial line rate selection is governed by the specifications of the ADC/DAC device(s) to which the core is interfaced. The required operating serial line rate directly relates to the clock rate at which the core logic operates (core clock); the serial line rate also governs the selection of the reference clock required by the transceiver(s).
Important: It is strongly recommended that you use one of the
clocking schemes presented in this section. Use of alternative clocking schemes might lead to
design failure.