Tool/software:
Hi,
In the datasheet for LMX2820 there is a specification for the dynamic range and speed of the MUTE function (using the external pin), i.e. Pmute, tMute, tUnmute.
Similar to the mute function I'm interested in switching between the A and B outputs, i.e. either the A or the B output is muted and the other enabled. I would only switch between A and B output at the same time as performing an instant calibration, so this switching doesn't have to faster than the VCO calibration. I will use DBLBUF_OUTBUF_EN to make sure the switch happens at the calibration instant.
Questions:
- How fast is the enable/disable when changing the state of OUTA_PD/OUTB_PD, i.e. turn-on and turn-off settling times (given some definition of settling error)?
- What's the leakage output power level for a powered down output?
I'm basically contemplating if I can use this functionality to substitue an external SPDT switch.
Thanks!
