SNAU308A November 2024 – May 2025
There are two type of SYSREF repeater mode operations, synchronous and asynchronous repeater mode. With synchronous repeater mode, incoming SYSREF clock is re-clocking to align with the VCO, SYSREF delay control is supported. With asynchronous repeater mode, incoming SYSREF clock passes through the device and output at RFOUTB. SYSREF delay control does not apply in this mode. To put the LMX device in this mode, set RPTR_NONSYNC = 1.
Figure 4-28 Synchronous Mode
Configuration
Figure 4-29 Asynchronous Mode
Configuration
Figure 4-30 SYSREF Synchronous Repeater Mode