INTEGRATED CIRCUITS
DATA SHEET
TEA1098A Speech and handsfree IC
Preliminary specification File under Integrated Circuits, IC03 2000 Mar 21
Philips Semiconductors
Preliminary specification
Speech and handsfree IC
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 for dynamic, magnetic or piezo-electric earpieces (with externally adjustable gain) • Digital volume control on earphone amplifier (4 steps) • Automatic Gain Control (AGC) for true line loss compensation • Microphone...