Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Search results

  1. A

    Why input signal level is measured in dBm/Hz?

    I saw a datasheet indicated the input signal level is -173 dBm/Hz. Why dBm/Hz ? Could someone please kindly advise and thanks.
  2. A

    Sensitivity spread in Crystal unit

    What dose "senstivity spread" mean in crystal unit ? Thanks.
  3. A

    What's the difference btw series/parallel resonant crystal

    parallel resonant crystal I don't understand what's the difference btw series resonant crystal and parallel resonant crystal ? Are they the same in crystal manafacture ? In what application I need series one and in what application I need parallel one ? Thanks for your kindly advice.
  4. A

    Looking for fundamental theory and design of Xtal oscillator

    Xtal oscillator Can someone provide fundamental theory & design of Xtal oscillator ? Thanks a lot.
  5. A

    How to calculate matching loss

    I would like to know how much power is lost on matching network when you design a matching. Could anyone advise how to calculate matching loss? Thanks a lot.
  6. A

    Why does CMOS not a good choice for PA design ?

    What is the limitation & disadvantage ? Thanks a lot.
  7. A

    Downconverting in receiver architecture

    Receiver Architecture From traditional recever(2 stage downconverting) to modern receiver (1 stage downconverting, low IF or Zero IF) structure, what's the progress of design for this ? I mean why it can not just downconvert the freq from RF to Zero-IF in the past instead of using 2 mixers...
  8. A

    What does "bandgap" stand for ?

    I saw a block called "Bandgap Voltage" from a transceiver datasheet. Could any expert advise what the function it is? Thanks a lot.
  9. A

    Noise Figure in blocking conditions

    Can someone instruct what it means ? I saw it from transceiver datasheet for cellular phone.
  10. A

    What is "Two-Point Modulation Scheme" ?

    two point modulation pdf Can someone advise when I can find related data. Thanks.
  11. A

    How does a crystal oscillator work?

    Crystal Oscillator Can someone tell me how crystal oscillator work and circuits structure? Why does it use crystal ? What's the advantage and why ? Thanks for your advise.
  12. A

    What does "wrapper" stand for ?

    I saw a block named "wrapper" in the chip system diagram. Could someone advise what does it mean ? Thanks.
  13. A

    What does "wrapper" standard for ?

    I saw a name "wrapper" in a DSP block for something application. Could someone advise what wrapper stands for ? Thanks.
  14. A

    Why in old GSM circuits both RX-VCO and TX-VCO were used?

    In GSM circuits, I saw a few old platform with RX-VCO & TX-VCO. Why can't it just use one VCO instead of two VCO ? Thanks.
  15. A

    Transistor for switch purpose

    Could any expert advise the transistor selection for switch purpose. Should I choose BJT or MOS ? What's the character btw them for switch purpose. Thanks.
  16. A

    How to design voltage converter ?

    max1834 circuit I'm sorry I lost some information to you. I got a (1) 1.8V / 45mA logic signal ("Hi"), (2) 2.8V constant voltage source how can I transform 1.8V / 45mA logic signal into 2.6V / 10mA(Max) by the simplest circuit (supposed digital transistor)? Could any expert advise which...
  17. A

    Look for ADS training data for advanced application

    Hi Where can I get ADS training files(RF) for advanced application. I have basic training slide & material but I would like to study it deeply. Please advise and thanks.
  18. A

    Matching configuration for FM radio

    Matching for FM radio I got a FM radio matching configuration figure, can someone advise why it add a 1000pF capacitor btw VNA & matching network? Thanks a lot.
  19. A

    FM radio sensitivity ?

    sinad in fm radio 12dB SINAD 0.158uV (SINAD 12dB) Could someone advise the explanation of above spec and the way of measurement. Thanks a lot.
  20. A

    How to measure insertion loss of this spring connector ?

    Could someone please advise the way you would measure the insertion loss of this spring connector ? The frequency range is from 800MHz ~ 2GHz. Thanks a lot.

Part and Inventory Search