JAJSJO2B March 2022 – July 2022 LMK5B33216
PRODUCTION DATA
Typically phase cancellation will be enabled during hitless switching to prevent a phase transient (phase hit) from propagating to the outputs when switching between two reference inputs with a fixed phase offset and are frequency-locked. The inputs are frequency-locked when they have same exact frequency (0-ppm offset), or have frequencies that are integer-related and can each be divided to a common frequency by integers. The hitless switching specifications (tHITLESS and fHITLESS) are valid for reference inputs with no wander. In the case where two inputs are switched but are not frequency-locked, the output smoothly transitions to the new frequency with reduced transient.