Peak Amplitude Equalization For Protection Circuits

摘要

The present invention relates to a transmission arrangement (100; 200) comprising a line driver (130) for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5), and a clamping device (152; 252; 254) for protecting the line driver from signal surges occurring over the transmission line. In accordance with an embodiment of the invention, the transmission arrangement further comprises a peak amplitude equalizer (111) configured to increase the amplitude of selected signal crests (V1P; V2P) of respective transmit DMT symbols (S1; S2) up to a desired crest value (VOPT) for short recharge of the clamping device. The present invention also relates to a method for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5).