Terminal station for telecommunication by wire
作者： Zhenhua Wang , Jacob Mulder , Rolf F. P. Becker
DOI:
关键词:
摘要: A telephone set includes an anti-sidetone circuit formed by a feedback loop having filter in the path. The output is substantially equal to signal produced at connection terminals microphone. Preferably composed of two sub-filters connected cascade, switched capacitors integrated circuit. An EEPROM control can be included permit easy programming during manufacture, match selected transmission line impedance.
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