Single PLL Based MBOFDM Mode1 Frequency Synthesizer Injection Multiplier Based Architecture

1
Single PLL Based MB-OFDM Mode-1 Frequency
Synthesizer(Injection Multiplier Based
Architecture)

• The Multiply-by-1.5 is composed of multiply-by-3
  and divide-by-2

2
Single PLL Based MB-OFDM Mode-1 Frequency
Synthesizer (Current-Reuse Multiplier Based
Architecture)

• The multiply-by-1.5 is implemented by
  current-reuse multiplier

3
MB-OFDM Mode-1 Frequency Synthesizer with PLL and
DLL

• The ratio of 7.5 is composed of multiply-by-2 and
  divide-by-15

4
Conclusions

• Two different architectures of MB-OFDM Mode-1
  frequency synthesizer are proposed.
• The single PLL based architecture can reduce the
  occupied die area by loop filters, and the power
  dissipation can be decreased by the coupled
  structure and current-reuse technique.
  Experimental results show the better in-band spur
  performance.
• The PLL and DLL based architecture is fit to
  integration of transceiver with the better yield,
  and it has the lowest power consumption among the
  published works.