Mixer-transconductance Interface With Selectable Mixer And Transconductance Units

  • Published: Jan 6, 2011
  • Earliest Priority: Jul 02 2009
  • Family: 5
  • Cited Works: 0
  • Cited by: 2
  • Cites: 5
  • Additional Info: Full text

Techniques for providing an efficient interface between a mixer block and a transconductance (Gm) block. In an exemplary embodiment, the output currents of at least two unit cells of the transconductance block are conductively coupled together, and coupled to the mixer block using a single conductive path. For a differential signal, the conductive path may include two conductive leads. Within the mixer block, the single conductive path may be fanned out to at least two unit cells of the mixer block. At least one Gm unit cell may be selectively enabled or disabled to control the gain setting of the mixer-transconductance block. The techniques may further be applied to transceiver architectures supporting in-phase and quadrature mixing, as well as multi-mode and/or multi-band operation.

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Document History
  • Publication: Jan 6, 2011
  • Application: Jul 2, 2010
    WO US 2010/0040958 W
  • Priority: Apr 20, 2010
    US US 76345810 A
  • Priority: Jul 2, 2009
    US US 22256909 P

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