TEA1112A Overview
Key Specifications
Package: DIP
Operating Voltage: 2.9 V
Max Operating Temp: 70 °C
Min Operating Temp: -25 °C
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)
- Receiving amplifier for dynamic, magnetic or piezo-electric earpieces
- AGC line loss compensation for microphone and earpiece amplifiers
- LED on-hook/off-hook status indication
