RF chip for SDR transceiver?

  • Thread starter fidel
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  • #1
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Main Question or Discussion Point

Hi all. I'm designing an SDR transceiver. I need a RF chip/module that at least contains PA, LNA and Tx/Rx switch. It should perform conversion between analog or digital baseband/IF signal and 2.4GHz radio signal. Modulation/demodulation will not be done in this chip. The radio signal is sent/received to/from an antenna.

In short, I want the RF module in the figure below only. DAC/ADC can also be included inside:

Antenna <--> RF Module <--> DAC/ADC <--> Baseband processing <--> .....
-------------------------

I've searched a lot but only seen some wifi/bluetooth/zigbee chip sets that indlude modem also...

Do you have suggestion for such chips? Thank you.
 

Answers and Replies

  • #2
berkeman
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Have you looked at the various chips made by Analog Devices? They have a pretty good assortment of ISM band chips and building blocks:

http://www.analog.com/
 
  • #3
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3x. I just found some from adi. The bandwidth they support is larger than what I desire. Will it cause trouble except that higher bandwidth will let more noise in?
 
  • #4
berkeman
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3x. I just found some from adi. The bandwidth they support is larger than what I desire. Will it cause trouble except that higher bandwidth will let more noise in?
Which bandwidth? Are there any filtering options?
 
  • #5
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I guess it's the signal BW after modulation, but not sure. I'm requesting more information which is not presented on the web pages.
 

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