適用於xDSL 之信號驅動器
Date Issued
2004-11-30
Date
2004-11-30
Author(s)
DOI
922622E002036CC3
Abstract
This report summarizes all
experimental results of the project, including
the system architecture and circuit design of
the line driver for xDSL applications. The
proposed architecture contains one comparator,
one loop filter and a digital output buffer. The
system is nonlinear and unstable, and a
self-oscillating signal with a pre-designed
frequency circulates around the loop. With a
sine wave input, the self-oscillating signal
becomes pulse-width modulated and therefore
carries the input frequency information. By
passing the signal through a low-pass filter,
the input signal can be reconstructed. The
circuit components, the comparator and output
buffer, both have the feature of easy design
with compared to the traditional class AB
power amplifier. The full circuit design and
simulation are done, and the chip is fabricated
in a 0.35-um CMOS process to verify the line
driver working principle.
Subjects
xDSL line driver
self-oscillating power amplifier
SOPA
Publisher
臺北市：國立臺灣大學電子工程學研究所
Type
report
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922622E002036CC3.pdf
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