I encountered a problem with this device:
In my board, PRI_REF pin is connected to a LVDS transmitter working at 100 MHz. SEC_REF pin(also VDD_SEC_REF) is directly connected to GND so it is not used.
REF_SEL pin is set to low because I only use PRI_REF. SYNCN and PDN pins are both float.
I programmed it with SPI mode and set Reg.4 as 0x338C. The device gave me the information that LOS_REF is high and the PLL is unlocked, of course, there is no output.
The input clock is normal, also the output clocks at Y4&Y5 when I set Y4&Y5 to bypass PRI_REF.
I wonder why there is no output clock of SMUX. Did I make the wrong configuration？