The ADF4030 provides for 10 BSYNC channels and accepts an input clock signal (REFIN) as a frequency reference for generating an output clock on any BSYNC channels configured as an output. The hallmark feature of the ADF4030 is its ability to time align the clock edges of any one or more BSYNC channels to less than 5ps (at the device pins) with respect to the BSYNC channel selected as the reference BSYNC channel.

The ADF4030 is well adapted for multiple connections with other ADF4030s for synchronizing clock signals in a system. Each BSYNC is bidirectional allowing for reversing the direction of the clock signal to measure the propagation delay of the transmission medium, although round trip constructions that use replica paths are also supported. The bidirectional nature of the round trip delay measurement greatly reduces the error in determining the propagation delay through the BSYNC transmission medium as compared to using a replica path. This makes the ADF4030 capable to time align the clock edges of BSYNC channels across multiple ADF4030, independent of the tree or cascade architecture in which the ADF4030 system is designed. The benefits of bidirectional clocking extend to devices other than the ADF4030 assuming those devices support bidirectional clock exchanges.

The output divider block associated with each BYSNC channel has an optional pseudo-random binary sequence (PRBS) generator for producing gapped periodic clock signals, which supports JESD204B and JESD204BC operation.

The ADF4030 may be used as a stand alone differential time to digital converter (TDC) to measure the difference in time between clocks arriving at its inputs.

The rms jitter of one ADF4030 BSYNC clock is 4.3 ps typ.

The ADF4030 is available in a 48-lead LGA (7 mm × 7 mm) package and operates over the −40°C to +105°C ambient temperature range.

APPLICATIONS

• 5G timing transport high precision synchronization
• Phased array radar
• Automatic test equipment (ATE) pin electronics
• JESD204B/JESD204BC support for analog-to-digital converter (ADC) and digital-to-analog converter (DAC) clocking