Invention Grant
US08598958B1 Temperature and/or voltage independent voltage controlled oscillator with programmable gain and/or output frequency range 有权
具有可编程增益和/或输出频率范围的温度和/或电压独立压控振荡器

  • Patent Title: Temperature and/or voltage independent voltage controlled oscillator with programmable gain and/or output frequency range
  • Patent Title (中): 具有可编程增益和/或输出频率范围的温度和/或电压独立压控振荡器
  • Application No.: US13406772
    Application Date: 2012-02-28
  • Publication No.: US08598958B1
    Publication Date: 2013-12-03
  • Inventor: Reading Maley
  • Applicant: Reading Maley
  • Applicant Address: US CA Santa Clara
  • Assignee: Ambarella, Inc.
  • Current Assignee: Ambarella, Inc.
  • Current Assignee Address: US CA Santa Clara
  • Agent Christopher P. Maiorana, PC
  • Main IPC: H03K3/03
  • IPC: H03K3/03
Temperature and/or voltage independent voltage controlled oscillator with programmable gain and/or output frequency range
Abstract:
An apparatus comprising a transconductance control circuit, a boost control circuit, a current computation circuit and an oscillator circuit. The transconductance control circuit may be configured to generate a current control signal in response to (i) a voltage control signal and (ii) a plurality of range control signals. The boost control circuit may be configured to generate a current boost signal in response to a reference current signal and an enable signal. The current computation circuit may be configured to generate a first control signal and a second control signal in response to the current boost signal and the current control signal. The oscillator circuit may be configured to generate an output signal oscillating at a particular frequency in response to the first control signal and the second control signal.
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