Recherchez avec le numéro de pièce ainsi que le fabricant ou la 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. A switching converter is also provided for converting the ring signal. .
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 loudhearing, handsfree and tone ringer u Very few external components u Power derived from ring sig.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | AS2520 |
austriamicrosystems AG |
Telephone Speech Circuit with Loudhearing and Handsfree |
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| 2 | AS2520B |
austriamicrosystems AG |
Telephone Speech Circuit with Loudhearing and Handsfree |
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| 3 | AS2521B |
austriamicrosystems AG |
Telephone Speech Circuit with Loudhearing and Handsfree |
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| 4 | AS2522B |
austriamicrosystems AG |
Telephone Line Interface and Speakerphone Circuit |
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| 5 | AS2523 |
austriamicrosystems AG |
Telephone Line Interface and Speakerphone Circuit |
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| 6 | AS2524 |
austriamicrosystems AG |
Telephone Line Interface and Speakerphone Circuit |
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| 7 | AS2524B |
austriamicrosystems AG |
Telephone Line Interface and Speakerphone Circuit |
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| 8 | AS2525 |
austriamicrosystems AG |
Single-Chip Handsfree Phone CMOS Integrated Circuit |
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| 9 | AS2504 |
austriamicrosystems AG |
Cordless telephone / answering machine line interface |
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| 10 | AS2507 |
austriamicrosystems AG |
SINGLE CHIP 2-WIRE INTERCOM CMOS INTEGRATED CIRCUIT |
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| 11 | AS2533 |
austriamicrosystems AG |
Multi-Standard CMOS Single Chip Telephone IC |
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| 12 | AS2534 |
austriamicrosystems AG |
Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping |
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