Peaking transmission line receiver for logic signals

Details Peaking transmission line receiver for logic signals Peaking transmission line receiver for logic signals

2007-07-10

2007-07-10

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C326S086000

Reexamination Certificate

active

11055806

ABSTRACT:
A receiver circuit is configured as a frequency compensated differential amplifier having one input coupled to the output of a transmission line to receive a transmitted signal and the second input coupled to a reference voltage. The differential amplifier has a high frequency gain equivalent to the gain of an uncompensated differential stage for the transmitted signal. The compensated differential amplifier has an attenuated low frequency gain for signal frequencies substantially lower than the high frequency and a transitional gain for frequencies between the low and high frequencies. A compensated stage provides the portion of the signal with a compensated response and an uncompensated stage provides the portion of the amplified signal that is uncompensated. Bias control signals determine how much of the output signal is from the compensated and uncompensated stages as a means for customizing response from transmission lines with varying losses.

REFERENCES:
patent: 4795916 (1989-01-01), Liron
patent: 6160417 (2000-12-01), Taguchi
patent: 6448815 (2002-09-01), Talbot et al.
patent: 6665624 (2003-12-01), Simon et al.
patent: 6693463 (2004-02-01), Mateman
patent: 6747483 (2004-06-01), To et al.
patent: 6771124 (2004-08-01), Ezell

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