The ADC12DL3200 clock inputs must be AC-coupled to the device to ensure rated performance. The clock source must have extremely low jitter (integrated phase noise) to enable rated performance. Recommended clock synthesizers include the LMX2594, LMX2592, and LMX2582.

For multi-device synchronization the data converter system (ADC plus FPGA) requires a SYSREF signal in addition to the device (sampling) clock, which is similar to that used for JESD204B converters. Therefore, JESD204B-compatible clock devices are a good choice for clocking the ADC12DL3200. The LMK04832, LMK04828, LMK04826, and LMK04821 devices are suitable to generate these clocks. Depending on the ADC clock frequency and jitter requirements, this device can also be used as the system clock synthesizer or as a device clock and SYSREF distribution device when multiple ADC12DL3200 devices are used in a system.