Signal Baud rate calculation - ASK Modulation

Hi folks..

I have searched through Google and its suggested links before coming over and asking you.

I am not a communications engineer. But have tried to learn as much as I could for the project I am currently handling. We have gone along with a reference design circuit for the ASK modulation RF Transmitter and receiver. The data Sheet says that the maximum baud rate possible is 80 Kbps but that the design is optimised for 4800 bps. the application note as well mentions the baud rate as 4800. I used a baud rate calculation formula from the net but it did not match the results. Please help me out guys..

The carrier wave frequency used is 433Mhz. The controllers are capable of processing data in the realm of 1Mhz. It seems the limitation comes from the saw tooth filter used.

• How is the baud rate calculated... And how can it be increased.

More over will the design limitation also be in the transmitter section...

I know the details are insufficient but I do not want you guys to solve the answers for me but to possibly show me the right direction/path to follow to solve the issue.

Please let me know if any further details are required for you to help me out...

regards,

Vishal....