The TEA1099H is a speech and handsfree IC with auxiliary inputs/outputs and analog multiplexer produced by Philips Semiconductors
The TEA1099H is an analog bipolar circuit designed specifically for telephone applications. It integrates line interface, handset microphone and earpiece amplifiers, as well as handsfree microphone and loudspeaker amplifiers. The device includes specific auxiliary Inputs/Outputs (I/Os) and an analog multiplexer controlled by logic inputs from a microcontroller to enable the correct transmit and/or receive channels.
The IC is capable of being supplied by the telephone line or mains power, providing regulated voltage supplies for internal circuitry, electret microphones, and external microcontrollers. It features automatic gain control (AGC) for true line loss compensation and includes a dynamic limiter on the loudspeaker amplifier to prevent distortion during operation.
| Line current operating range (normal operation) | 11 - 140 mA |
|---|---|
| Stabilized voltage between SLPE and GND (typical) | 3.7 V |
| Regulated supply voltage for internal circuitry (typical) | 3.0 V |
| Package type | QFP44 plastic quad flat package; 44 leads |
| Body dimensions | 10 x 10 x 1.75 mm |
The IC is designed for line powered telephone sets, cordless telephones, fax machines, and answering machines.
The IC provides a filtered 2.0 V power supply output specifically for an electret microphone.
Yes, it includes AGC (Automatic Gain Control) designed for true line loss compensation.