D/S addresses that both the pin 2 and pin 5 (ground pin) needs to be shorting together by external PCB trace. we wonder to know:
1. What's the configuration between pin 2 and pin 5 inside the device? internal short together or short with impedance?
2. If both grounding are shorted together inside the device, why D/S also recommend to make a short between pin2 and pin 5 with PCB trace and short as close as possible ?
3. Can these two GND pin to be seperated for power/noise and signal ground?
Regards,
Brian