AS2523 Datasheet | austriamicrosystems AG

austriamicrosystems Telephone Line Interface and Speakerphone Circuit AS2523, AS2524, AS2524B Key Features - PRELIMINARY DATA SHEET General Description 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 pensation and Rx-volume control for handset and handsfree operation. It shall act as an a/bline powered device, which is controlled by a CPU via a serial interface on AS2523 or a standard dialler via a parallel interface on AS2524 and AS2524B. Line/Speakerphone circuit on a 28-pin CMOS-IC, simple inventory: same die for AS2523/24 and AS2523/24B...