Datasheet Details
| Part number | TEA1112 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 154.34 KB |
| Description | Low voltage versatile telephone transmission |
| Datasheet |
 TEA1112 Datasheet
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General Description
The TEA1112; TEA1112A are bipolar integrated circuits that perform all speech and line interface functions required in fully electronic telephone sets.
They perform electronic switching between speech and dialling.
Key Features
- Low DC line voltage; operates down to 1.6 V (excluding polarity guard).
- Voltage regulator with adjustable DC voltage.
- Provides a supply for external circuits.
- Symmetrical high impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones.
- Asymmetrical high impedance input (32 kΩ) for electret microphones.
- DTMF input with confidence tone.
- Mute input for pulse or DTMF dialling (MUTE for TEA1112 and MUTE for TEA1112A).