If amplifier

If amplifier

  • CN 1,289,477 A
  • Filed: 09/17/1999
  • Published: 03/28/2001
  • Est. Priority Date: 10/05/1998
  • Status: Abandoned Application
First Claim
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1. a tuner comprises an input circuit and a mixer oscillator stage, and described mixer oscillator stage comprises an intermediate frequency amplifier that is connected to an output of described tuner,It is characterized in that,Described tuner comprises that is used for a switching device that switches between a symmetry and asymmetric output mode, thereby under described asymmetric mode, an output of described tuner is connected to a reference voltage by described switching device, and described tuner comprises a control device that is used to control described handover operation.

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