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ALL-DIGITAL TIMING CONTROL FOR MULTI-CHANNEL FULL-DUPLEX TRANSCEIVER

  • US 20090323566A1
  • Filed: 06/23/2009
  • Published: 12/31/2009
  • Est. Priority Date: 06/25/2008
  • Status: Active Grant
First Claim
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1. A method for controlling a timing for a multi-channel full-duplex transceiver, the method comprising the following steps:

  • generating a first clock and a second clock using a controlled oscillator in accordance with a control code, where a frequency of the second clock corresponds to a frequency of the first clock;

    transmitting in parallel a plurality of outgoing signals onto a plurality of channels, respectively, in accordance with a timing defined by the first clock;

    receiving, sampling, and equalizing in parallel a plurality of incoming signals from said plurality of channels, respectively, in accordance with a timing defined by the second clock to generate in parallel a plurality of equalized signals, respectively;

    converting in parallel said equalized signals into a plurality of refined signals, respectively, in accordance with a timing defined by the first clock; and

    generating the control code, wherein in a first operation mode the control code is established by detecting a timing difference between an output clock of the controlled oscillator and a reference clock, and in a second operation mode the control code is established by detecting a timing embedded in one of said refined signals.

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