AS2522B is Telephone Line Interface and Speakerphone Circuit manufactured by austriamicrosystems AG.
| Part Number | Description |
|---|---|
| AS2520 | Telephone Speech Circuit with Loudhearing and Handsfree |
| AS2520B | Telephone Speech Circuit with Loudhearing and Handsfree |
| AS2521 | Telephone Speech Circuit with Loudhearing and Handsfree |
| AS2521B | Telephone Speech Circuit with Loudhearing and Handsfree |
| AS2523 | Telephone Line Interface and Speakerphone Circuit |
AS2522 is a CMOS integrated circuit that incorporates DC and AC line adaptation (DC-mask and synthesized ACimpedance of 100 0Ω ) 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. Furthermore the AS2522 incorporates a DTMF, FSK transmitter, single...
