System and method for DC offset correction in transmit baseband

Details System and method for DC offset correction in transmit baseband System and method for DC offset correction in transmit baseband

2008-05-06

2008-05-06

Anderson, Matthew (Department: 2618)

Telecommunications

Transmitter

With feedback of modulated output signal

C455S091000, C455S115200, C375S297000

Reexamination Certificate

active

07369820

ABSTRACT:
A radio frequency (RF) transceiver is provided. The RF transceiver comprises a transmit path comprising an output coupled to an RF antenna, a feedback path comprising an input coupled to the output of the transmit path, and a DC offset calibration module comprising a first input coupled to an output of the feedback path, a second input to receive a first signal and an output connected to an input of the transmit path. The DC offset calibration module is operable to determine a first direct current (DC) offset of a closed-loop path comprising the transmit path and the feedback path and determine a second DC offset based on the feedback path exclusive of the transmit path.

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