TEA1096T
Key Features
- Line Interface with: - active set impedance (adjustable) - voltage regulator with adjustable DC voltage - low voltage circuit for parallel operation
- Interface to peripheral circuits with: - supply VDD for microcontroller - stabilized supply voltage (VBB) which is: available for peripheral circuits adjustable (TEA1096 only) - Dual-Tone MultiFrequency (DTMF) signal input - power-down function for pulse dialling/flash - mute function to disable speech during dialling
- Microphone amplifier with: - symmetrical high impedance inputs - externally adjustable gain - AGC; line-loss compensation - dynamic limiter - microphone mute function
- Receiving amplifier with: - externally adjustable gain - confidence tone during dialling - double anti-sidetone circuit for long and short lines - AGC; line-loss compensation - earpiece protection by soft clipping.
- Listening-in circuit with: - loudspeaker amplifier - dynamic limiter to prevent distortion at any supply condition - volume control via a potentiometer - fixed gain of 35.5 dB - disable function - gain control input (TEA1096A only). ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1096 TEA1096A TEA1096T TEA1096AT November 1994 DIP28 DIP28 SO28 SO28 DESCRIPTION APPLICATIONS TEA1096; TEA1096A
- Line-powered telephone sets with listening-in/line monitoring function. DIFFERENCES BETWEEN TEA1096 AND TEA1096A The TEA1096 offers via input VBA an adjustable stabilized supply voltage VBB, whereas the TEA1096A offers a fixed stabilized voltage VBB. The TEA1096A offers a DC gain control input VCI to set the loudspeaker volume, whereas the TEA1096 offers volume control via a potentiometer. GENERAL DESCRIPTION The TEA
