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Mixer PowerPoint Presentation

Mixer

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Mixer

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Presentation Transcript

  1. Mixer

  2. Performance Parameters • Gain (convolution analysis) • Port-to-Port Feedthrough • (Noise) • (Linearity)

  3. Feedthrough Mechanism in a Mixer (LO re-radiation)

  4. Single Ended Pasive RF Mixer

  5. Frequency Spectrum LO RF

  6. LO-RF Feedthrough

  7. Differential Mixer

  8. Waveform

  9. Voutp-Voutn

  10. Frequency Spectrum

  11. Comparison Reduced RF Feedthrough Reduced DC Offset

  12. Double Balanced Passive Mixer

  13. Waveforms

  14. Frequency Spectrum No DC, RF, and LO Feedthrough

  15. Output Waveform

  16. Sampling Mixer

  17. Sampling Mixer Rf: 100 Hz, LO: 400 Hz

  18. Waveform of Sampling Mixer

  19. DFT of the Output Spectrum

  20. Use PMOS to Improve Sampling

  21. Improved Sampling Due to PMOS

  22. Output Spectrum of CMOS Switch