AD9548详细手Supports Stratum 2 stability in holdover mode
Supports reference switchover with phase build-out
Supports hitless reference switchover
Auto/manual holdover and reference switchover
4 pairs of reference input pins with each pair configurable as
a single differential input or as 2 independent singleended inputs
Input reference frequencies from 1 Hz to 750 MHz
Reference validation and frequency monitoring (1 ppm)
Programmable input reference switchover priority
30-bit programmable input reference divider册
