×

Gm-C tuning circuit with filter configuration

  • US 6,538,498 B2
  • Filed: 04/02/2002
  • Issued: 03/25/2003
  • Est. Priority Date: 07/24/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A tuning circuit, comprising:

  • a slave filter block that receives a first control signal and outputs a second control signal; and

    a master filter block that receives first and second prescribed reference signals and outputs the first control signal to the slave filter block, wherein the master filter block comprises;

    a polyphase filter that receives the first control signal, a first rectifier coupled to the polyphase filter, a second rectifier coupled to the polyphase filter, and a converter coupled to the first and second rectifiers that outputs the first control signal.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×