TEA1098A Datasheet (NXP) - Speech/handsfree

TEA1098A, Speech/handsfree

plastic very small outline package; 40 leads plastic quad ﬂat package; 44 leads (lead length 1.3 mm); body 10 × 10× 1.75 mm GENERAL DESCRIPTION * Duplex controller consisting of: TEA1098A * signal and noise envelope monitors for both channels (with adjustable sensitivities and timi

TEA1098A 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

* DTMF input with confidence tone on earphone and/or loudspeaker

* Earphone amplifier