Method and apparatus for active line termination

An improved method and apparatus for active line termination is disclosed. An active termination line driver (ATLD) includes a pair of power amplifiers configured to amplify a transmit signal, the amplifiers comprise a first input for receiving the transmit signal, a second input for receiving a fee...

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1. Verfasser: TENNEN ANER
Format: Patent
Sprache:eng
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Zusammenfassung:An improved method and apparatus for active line termination is disclosed. An active termination line driver (ATLD) includes a pair of power amplifiers configured to amplify a transmit signal, the amplifiers comprise a first input for receiving the transmit signal, a second input for receiving a feedback signal, and an output configured to provide the amplified transmit signal to the load. The ATLD also includes a resistive network configured to provide the feedback signal from the outputs of the amplifiers to the second inputs power amplifiers. The resistive network is selectively configured to facilitate any one of a plurality of feedback configurations to emulate a back-matching impedance. Other embodiments of the present invention may be construed as methods for power efficiently driving a transmit signal to a load.