TEA1094; TEA1094A are bipolar circuits intended for use in mains, battery or line-powered telephone sets, cordless telephones, answering machines and fax machines.
The Philips TEA1094 and TEA1094A are bipolar integrated circuits designed for use in mains, battery, or line-powered telephone sets, cordless telephones, answering machines, and fax machines. These devices provide a hands-free function when used with members of the TEA106X or TEA111X transmission circuit families. They incorporate a microphone amplifier, a loudspeaker amplifier, and a duplex controller with signal and noise monitors for both channels.
| Current consumption (idle) | 3.1 mA |
|---|---|
| Microphone gain (typical) | 13 - 18 dB |
| Operating ambient temperature | -25 - +75 °C |
| Output capability (MOUT) | 20 mW (RMS) |
The IC is intended for use in mains, battery or line-powered telephone sets with hands-free/listening-in functions, cordless telephones, answering machines, and fax machines.
The TEA1094A includes a power-down function to reduce current consumption during pulse dialling or register recall, which is not present in the TEA1094.
Available packages include DIP28, DIP24, SOT136, SOT137, and SSOP24.