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RF chip for SDR transceiver?

  1. Jul 29, 2008 #1
    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.
     
  2. jcsd
  3. Jul 29, 2008 #2

    berkeman

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    Staff: Mentor

    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/
     
  4. Jul 31, 2008 #3
    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?
     
  5. Jul 31, 2008 #4

    berkeman

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    Staff: Mentor

    Which bandwidth? Are there any filtering options?
     
  6. Jul 31, 2008 #5
    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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