作者: Onis Cogburn
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摘要: A differential amplifier (40) receives a low level ADSL signal IN- and IN+ produces an amplified signal. pair of amplifiers (42, 44) the provides phase shifting further amplification to set pairs (46, 48, 50, 52) are coupled provide drive capability driver 54 56 fully output OUT- OUT+ with high linearity. common mode feedback stage (58) gain (98) feedback.