Muncy, Geissler, Olds & Lowe, P.C.
Analog front-end transmitter and a connection method of an X-digital subscriber line having a pre-distortion mechanism
A Pre-distortion mechanism for transmit path non-linearity in xDSL AFE is disclosed in the present invention. The AFE includes a line driver and a pre-distortion signal generator. The line driver receives an input differential signal and generates an output differential signal. The input differential signal includes a first input signal and a second input signal. The output differential signal includes a first output signal and a second output signal. The line driver receives the first input signal to generate the first output signal and receives the second input signal to generate the second output signal. The pre-distortion signal generator is coupled to input ends and output ends of the line driver. The pre-distortion signal generator generates a pre-distortion signal according to a first difference between the first input signal and the first output signal, and a second difference between the second input signal and the second output signal so as to adjust an output state of the analog front-end transmitter having a pre-distortion mechanism.
REALTEK SEMICONDUCTOR CORP.
H H H H H H
H04Q H04Q H04L H04L H04Q H04M
additional inventional inventional inventional additional inventional
Yung Tai Shian-Ru Hung-Chen
Chen Lin Chu