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Integrated programmable continuous time filter with programmable capacitor arrays

  • US 6,714,066 B2
  • Filed: 07/22/2002
  • Issued: 03/30/2004
  • Est. Priority Date: 02/18/2000
  • Status: Expired due to Term
First Claim
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1. A programmable capacitor array comprising:

  • a plurality of user-selectable capacitors, each of the plurality of user-selectable capacitors being coupled in series with an associated user-controlled switch, and each of the plurality of user-selectable capacitors and associated user-controlled switches being coupled in parallel with each other of the plurality of user-selectable capacitors and associated user-controlled switches, wherein at least one of the user-selectable capacitors includes;

    at least one trim capacitor coupled in series with a manufacturer-controlled switch; and

    at least one fixed capacitor coupled in parallel with the at least one trim capacitor and the manufacturer-controlled switch.

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