A method for detecting a burst in a transmitted data stream and circuit arrangement for carrying out the method

摘要

The present invention provides a method for detecting a burst (100a) in a transmitted data stream (102), wherein the transmitted data stream in a receiver unit (101) is received, a the transmitted data stream (102) corresponding electrical signal (102a) from the receiving unit (101) is output by the receiver unit (101) electrical signal (102a) in an amplifier output signal (102b) by means of a transimpedance amplifier (103) is converted, a first mean value (m1) of the amplifier output signal (102b) with a first middle lungs - time constant (t1) in a first averaging unit (119 - 1) is formed, a second average (m2) of the amplifier output signal (102b) with a second middle lungs - time constant (t2) in a second averaging unit (119 - 2) is formed a comparison of the first mean value (m1) with the second mean value (m2) of the amplifier output signal (102b) by means of a comparison unit (120) is carried out, and at least one amplifier time constant of the transimpedance amplifier (103) as a function of the comparison carried out by means of a switch-over signal (114) is switched over.