AS2504 Datasheet (austriamicrosystems AG) - Cordless telephone / answering machine line interface

AS2504, Cordless telephone / answering machine line interface

AS2504 is a CMOS integrated circuit that incorporates DC and AC line adaptation (DCmask and synthesised AC-impedance of 1000Ω) as well as a speech circuit with softclipping, line loss compensation and Rxvolu

AS2504 Features

* Analogue line interface and speech circuit for a/b terminals on a 28-pin CMOS-IC 2 balanced transmit inputs 3 unbalanced transmit inputs 2 buffered single ended receive outputs (RL>150Ω) 1 auxiliary single ended receive output (RL>10kΩ) Low noise (max. -72dBmp) Soft clipping to avoid h