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Recent content by Circuit_seller

  1. C

    Power supplied by the PCI slot

    Hi According to PCI revision 2.1, the maximum power you can get from a PCI slot (total power from both 3.3V and 5.0V) is 25W. Regards,
  2. C

    How to design a SAR ADC ?

    Re: SAR ADC Hi Try this book from analog devices: Analog-Digital Conversion https://www.analog.com/en/analog-to-digital-converters/ad-converters/products/technical-documentation/CU_td_technical_bookstore/resources/fca.html#ADconversion You can also download it from emule.
  3. C

    ofset cancellatin cap

    Hi There is another constraint in choosing the Cap, low corner frequency. When you use a capacitor for offset cancellation you make a HPF, so choose the cap value according to your stop band frequency.
  4. C

    Approach for multiple moving object detection and tracking

    Re: Approach for multiple moving object detection and tracki Hi, Another approach which doesn't need background subtraction or optical flow estimation is mean shift tracking. It works for non-rigid objects and the best paper for this is "Kernel-based mean shift object tracking". Regards, CS
  5. C

    TWO"S complement

    Hi The simple approach is to NOT all bits and then add 1 to them. Regards, CS
  6. C

    Ranking for Canadian universities in Electrical Engineering

    Re: University Ranking Hi, As far as I know, there is no official organization which rank canadian universities in special are like electrical engineering. Just macleans has a general ranking which is not accepted by some of reputable canadian universities like U of T. Regards, CS
  7. C

    FPGA High Performance Board

    Hi, Usually both xilinx and altera have pretty cheap development boards whci can cover your requirements. If you need more professional boards you can look at plda, nallatech, echotek, sundance, lyrtech or echotek products. Regards, CS
  8. C

    Motorola CD920 or CD930 AT commands

    Hello every body, Does anyone have the CD920 or CD930 AT commands set? Thanks in advance
  9. C

    sampling of human voice

    sample rate for voice Hi The minimum reasonable sampling frequency of human speech is 8kHz. By the way after sampling you can use VOCODER to decrease this rate.
  10. C

    Polyphase filter which interpolator factor=1

    Re: polyphase filter Hi Did you see these filter anywhere?
  11. C

    calculating noise floor

    Hi You can simply measure noise floor of the requested frequency with the Spectrum Analyzer. Place the marker where you want and read the value, then the noise floor in dBm/Hz at that frequency will be: Marker Value - 10 * log10(Resolution BW). Regards
  12. C

    fixed point multiplication

    Hi you should shift it one bit to left.
  13. C

    How a filter with coefficient of 3.234 is represented in register of Fixed Point DSP?

    Re: Fixed Point DSP Hi you can display it in Q2.13.
  14. C

    multiplication of fixed point DSP

    Hi The result of multipication of Q4.12 and Q1.15 numbers is a Q4.27 number. To get the result you should simply do a 16bit * 16bit multipication and then you should shift the result left by 1-bit. Regards
  15. C

    gilbert vs. passive mixer in cmos

    Hi Another advantage of gilbert cell over passive mixer is Bandwidth. Active mixers potentially have wider BW than others. Regards
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