A CMOS line driver for ADSL central office applications.

An ADSL central office (CO) line driver utilizing a single 6-V supply is described. The line driver output produces a 20-Vppd signal to deliver a 40-Vppd swing to a 100-Ω line. The adoption of an active termination, a dynamic supply control circuit technique, and deep n-well devices at the output st...

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প্রকাশিত:	IEEE Journal of solid state circuits 38, 12 (2003).
প্রধান লেখক:	Bicakci, A.
বিন্যাস:	প্রবন্ধ
ভাষা:	English
বিষয়গুলি:	15 dB. 1:2.4 transformation. 6 V. 700 mW. ADSL CO line driver. ADSL central office applications. CMOS analog integrated circuits. CMOS line driver. Active termination. Crest factor. Deep n-well devices. Differential line driver. Discrete multitone signals. Driver circuits. Dynamic supply control algorithm. Dynamic supply control circuit technique. High-voltage techniques. Line driver output. Offset calibration. One lift amplifier. Optimal power dissipation. Output device reliability. Power amplifiers. Signal path. Transformer turns. Voltage swing. Wire communication. 0.25-μm CMOS process. 100-Ω line. 20-Vppd signal. 40-Vppd swing.