Datasheet Details
| Part number | AS2523 |
|---|---|
| Manufacturer | austriamicrosystems AG |
| File Size | 693.21 KB |
| Description | Telephone Line Interface and Speakerphone Circuit |
| Datasheet | AS2523_austriamicrosystemsAG.pdf |
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Overview: austriamicrosystems Telephone Line Interface and Speakerphone Circuit AS2523, AS2524,.
| Part number | AS2523 |
|---|---|
| Manufacturer | austriamicrosystems AG |
| File Size | 693.21 KB |
| Description | Telephone Line Interface and Speakerphone Circuit |
| Datasheet | AS2523_austriamicrosystemsAG.pdf |
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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 Serial I/F on AS2523, parallel I/F on AS2524 Enhanced voice switching Background noise monitoring Tx- and Rx-gain programmable on AS2523 only Digital volume control of Rx signals on AS2523 only DC characteristic programmable on AS2523 only Dual softclipping in handset mode on AS2523 only Dual softclipping in handsfree mode on AS2523 only Loudspeaker amplifier for loudhearing and handsfree Supply voltage generation for external circuitry Automatic line loss pensation on AS2523 / 24B only Real and plex impedance selectable by external ponents Side tone adaptation selectable by external ponents Unique EMC performance Operating range from 15mA to 100mA (down to 5mA with reduced performance) Few external ponents Applications Enhanced handsfree
| 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 |
| AS2522B | Telephone Line Interface and Speakerphone Circuit |
| AS2524 | Telephone Line Interface and Speakerphone Circuit |
| AS2524B | Telephone Line Interface and Speakerphone Circuit |
| AS2525 | Single-Chip Handsfree Phone CMOS Integrated Circuit |
| AS2504 | Cordless telephone / answering machine line interface |
| AS2507 | SINGLE CHIP 2-WIRE INTERCOM CMOS INTEGRATED CIRCUIT |