Can I use ring oscillator for Bluetooth transceiver?

of course no?

can you say why

Ring oscillators usually suffer from high phase noise due to the absence of the tank circuit. The required phase noise for Bluetooth wouldn't be achieved with ring VCO unless a complicated design is used.

that means he Ring oscillator with carefull design can be used for

most probably yes,which Ic are u using

State of the art bluetooth transceivers' VCOs reach the target specs with less than 3mA.
I think it's quite impossible to do so with a ring oscillator.
I hope it can help.
Mazz

yeah , the phase noise of the ring oscillator is very high
compred to LC oscillators

i think in the new bluetooth chips the LC oscillators are employed

khouly

May be not, it can meet the requirement of bluetooth.