NXP Semiconductors TEA1114A
The TEA1114A is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets. It performs electronic switching between speech and dialling. The IC operates at a line voltage down to 1.45 V DC (with reduced performance) to facilitate the use of telephone sets connected in parallel.| Part No. | TEA1114A |
|---|---|
| Datasheet | TEA1114A Download |
| Manufacturer |  NXP Semiconductors |
| Description | Low voltage versatile telephone transmission |
| Buy | Stock & Price |
FEATURES
● Low DC line voltage; operates down to 1.45 V (excluding voltage drop over external polarity guard)● Line voltage regulator with adjustable DC voltage
● 3.3 V regulated strong supply point for peripheral circuits compatible with: – Speech mode – Ringer mode – Trickle mode.
● Transmit stage with: – Microphone amplifier with symmetrical high impedance inputs – DTMF amplifier with confidence tone on receive output.
● Receive stage with: – Receive amplifier with asymmetrical output – Earpiece amplifier with adjustable gain (and gain boost facility) for all types of earpieces.
● MUTE input for pulse or DTMF dialling
● AGC line loss compensation for microphone and receive amplifiers. ORDERING INFORMATION TYPE NUMBER TEA1114A TEA1114AT TEA1114AUH PACKAGE NAME DIP16 SO16 −
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil) plastic small outline package; 16 leads; body width 3.9 mm bare die; on foilAPPLICATIONS
TEA1114A● Line powered telephone sets with LCD module
● Cordless telephones
● Fax machines
● Answering machines.
