Datasheet Details
| Part number | AS2520 |
|---|---|
| Manufacturer | austriamicrosystems AG |
| File Size | 96.70 KB |
| Description | Telephone Speech Circuit with Loudhearing and Handsfree |
| Datasheet |
 AS2520 Datasheet
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General Description
The AS2520/21/20B/21B are CMOS integrated circuits that contain all the audio functions needed to form a high comfort, line-powered telephone.
The devices incorporate line adaptation, speech circuit, loudhearing and handsfree - all supervised by the novel voice and power control circuit.
Key Features
- u Line/speech circuit, loudhearing, handsfree and dc/dc converter on one 28 pin CMOS chip u Operating range from 13 to 100 mA (down to 5 mA with reduced performance) u Soft clipping control eliminating harsh distortion u Volume control of receive signal with squelch and automatic loop gain compensation u Line loss compensation pin selectable u Low noise (max. - 72 dBmp) u Real or complex impedance adjustable u NET 4 compatible u Dynamically controlled voice switching u Same monitor amplifier for.