Patent ID: 7031457
Filing Date: 2006-04-18
Classification: H03F,H04L

Abstract:
1. A line driver, comprising: a signal input; a peak detector receiving a digital data signal from the signal input and outputting a logic signal having a first logic value when the digital data signal exceeds a threshold value and a second logic value when the digital data signal is below the threshold value, said threshold value modifiable by an overhead value; a data signal delay coupled to the digital data signal input and outputting a time-delayed digital data signal; a DAC coupled to the signal input and receiving as input the time-delayed digital data signal and outputting an analog data signal; a filter receiving as input the analog data signal and outputting a filtered analog data signal; and an amplifier receiving as input the filtered analog data signal from the filter and the logic signal, the amplifier operating at a first operating voltage level when the logic signal is at the first logic value and operating at a second operating voltage level when the logic signal is at the second logic value, wherein the threshold value is associated with a proportionality between a peak value associated with the first operating voltage level and a rms value associated with the first operating voltage level.