AS2524B - Telephone Line Interface and Speakerphone Circuit
AS2523/24 is a CMOS integrated circuit that incorporates DC and AC line adaptation (DC-mask and synthesized ACimpedance of 1000 Ω ) as well as a speech circuit with softclipping, line loss compensation and Rx-volume control for handset and handsfree operation.
It shall act as an a/bline powered devi