TEA1098AH Overview
Key Features
- Low DC line voltage
- Voltage regulator with adjustable DC voltage
- Symmetrical high impedance inputs (70 kΩ) for dynamic, magnetic or electret microphones
- DTMF input with confidence tone on earphone and/or loudspeaker
- Earphone amplifier for dynamic, magnetic or piezo-electric earpieces (with externally adjustable gain)
- Digital volume control on earphone amplifier (4 steps)
- Automatic Gain Control (AGC) for true line loss compensation
- Microphone mute
- Key tone mode. Supplies
- Provides a strong 3.35 V regulated supply for microcontroller or dialler
