TEA1118A - Versatile cordless transmisssion

The TEA1118 and TEA1118A are bipolar integrated circuits that perform all speech and line interface functions required in cordless telephone base stations.

The ICs operate at a line voltage down to 1.6 V DC (with reduced performance) to facilitate the use of telephone sets connected in parallel.

• 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 transmit inputs (62.5 kΩ) with large signals handling capabilities [up to 1 V (RMS value) with less than 2% THD].
• Receive amplifier for dynamic, magnetic or piezoelectric earpieces.
• AGC line loss compensation for transmit and earpiece amplifiers.
• DTM.