Patents Assigned to Cicada Semiconductor, Inc.
  • Output driver for high speed Ethernet transceiver
    Patent number: 6665347
    Abstract: Output driver for high speed Ethernet transceiver. A transmission line driver is disclosed for driving a transmission line in a first operating mode and in a second operating mode. The first and second operating modes operate substantially exclusive of each other. A current driver is provided for driving the transmission line in the first operating mode from a first data generator and at a first output voltage. A voltage driver is provided for driving the transmission line in the second operating mode from a second data generator at a second output voltage through a load, such that the current driver and the voltage driver operate independent of each other.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 16, 2003
    Assignee: Cicada Semiconductor, Inc.
    Inventors: Nicholas van Bavel, Eric James Wyers, John James Paulos
  • Pad calibration circuit with on-chip resistor
    Patent number: 6566904
    Abstract: A pad calibration circuit with on-chip resistor. An integrated circuit with an impedance terminated output terminal is disclosed. A source is provided for sourcing current to the output terminal of the integrated circuit, which output terminal interfaces with a load having a finite impedance associated therewith. An on-chip source impedance is disposed internal to the integrated circuit and between the source and the output terminal to define the input impedance of the output terminal.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: May 20, 2003
    Assignee: Cicada Semiconductor, Inc.
    Inventors: Nicholas van Bavel, Pradeep Katikaneni
  • Pad calibration circuit with on-chip resistor
    Publication number: 20020163355
    Abstract: A pad calibration circuit with on-chip resistor. An integrated circuit with an impedance terminated output terminal is disclosed. A source is provided for sourcing current to the output terminal of the integrated circuit, which output terminal interfaces with a load having a finite impedance associated therewith. An on-chip source impedance is disposed internal to the integrated circuit and between the source and the output terminal to define the input impedance of the output terminal.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Applicant: Cicada Semiconductor, Inc.
    Inventors: Nicholas van Bavel, Pradeep Katikaneni