| 摘要 |
<p>The invention relates to a comparator circuit for a digital audio reception interface, capable of receiving a two-phase coding signal with period or pseudoperiod T with zero or small direct component, the circuit mainly being characterised in that it comprises a feedback loop between output and input, this loop being arranged so as to form a low-pass filter (12) which modifies the hysteresis of the circuit as a function of the presence or non-presence of a digital signal at input. Application to reception circuits equipping digital audio connection interfaces. <IMAGE></p> |
