Questions and discussions about the hardware aspects of the TD RF modules, boards and accessories.
ramon2015
 
Posts: 51
Joined: Mon Jul 06, 2015 4:06 pm

TD1208 Power Supply (3,3 V or 3,0V) LDO or switching PS

by ramon2015 Mon Nov 02, 2015 4:47 pm

Hello,

The recommended typ. power supply for the TD1208 is 3,0V, But the max RF power (14 dBm) is specified at 3,3V.
Therefore, I assume if I use 3,0V instead of 3,3V I won´t have the 14dBm, right?

Furthermore, the LDO on the TD1208 EVB is rated at 3,3V.

I would like to squeeze as much RF power as possible. Could you, please, confirm If I can use 3,3V wihtout risk.

Regarding the power supply (LDO or Switching P.S.):
You use LODs in your EVBs, but I am planing to use a switching power supply so I can take use of the full range of the battery. Do you have any feedback/suggestion about switching power supplies with your modules?

Regards, Ramon.
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lcheminade
 
Posts: 146
Joined: Mon May 11, 2015 7:47 am

Re: TD1208 Power Supply (3,3 V or 3,0V) LDO or switching PS

by lcheminade Mon Nov 02, 2015 4:52 pm

You can use the TD1208 at 3.3V and that will indeed give you the best output power.
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