Looking for resources about RF VGA design

Hi, all,

does any one here have the experience on the RF VGA design? or have any material on the topic. For example, the gain range:42dB, step: 3dB?

Thanks,

Ruri

http://txspace.tamu.edu/bitstream/19...EN-Krishna.pdf
http://rfcmos.icu.ac.kr/pdf/journals/2006/5.pdf

You can design the stage for maximum gain and use digital attenuators for gain scaling.

You haven't specified the frequency range.
Take a look at LMH6504 (to 150MHz)

http://www.national.com/pf/LM/LMH6504.html
They are offering for free (if you buy a VGA) an evaluation board.

There are many VGA with digital/analog gain control interface:
http://www.analog.com/en/subCat/0,28...0%255F,00.html

Hi, thank you all for the reply.

The operating frequency I'm talking about is 2.4GHz.

Thanks,

Ruri