Description
The TEA1099H is an analog bipolar circuit dedicated for telephone applications.
Features
- Line interface.
- Low DC line voltage.
- Voltage regulator with adjustable DC voltage.
- Symmetrical high impedance inputs (70 kΩ) for dynamic, magnetic or electret microphones.
- Dual Tone Multi-Frequency (DTMF) input with confidence tone on earphone and/or loudspeaker.
- Receive amplifier for dynamic, magnetic or piezo-electric earpieces (with externally adjustable gain).
- AGC: Automatic Gain Control for true line loss compensation. Supplies.