TEA1069A

INTEGRATED CIRCUITS DATA SHEET TEA1069; TEA1069A Versatile speech/dialler/ringer with music-on-hold Product specification Supersedes data of 1996 Dec 10 File under Integrated Circuits, IC03 1998 Jan 08 Philips Semiconductors Product specification Versatile speech/dialler/ringer with music-on-hold FEATURES Speech part Voltage regulator with adjustable static resistance Low DC line voltage; operates down to 1.6 V (excluding polarity guard) Supply for dialler part and peripherals (not stabilized) Symmetrical high-impedance inputs (64 kΩ) for dynamic, magnetic, or piezoelectric microphones Asymmetrical high-impedance input (32 kΩ) for electret microphones Asymmetrical earpiece output for dynamic, magnetic, or piezoelectric earpieces Internal mute to disable speech during dialling Confidence tone during DTMF dialling Line-loss compensation (line-current dependent) for microphone and earpiece amplifiers Gain-control curve adaptable to the exchange supply. Dialler part Pulse/DTMF and mixed mode dialling Last Number Redial (LNR), up to 32 digits 13 repertory numbers (3 direct and 10 indirect) or 10 repertory numbers (10 direct), up to 32 digits, with a maximum of 224 digits in total Repertory and redial memory integrity check (memory contents check) Notepad memory function Flash and earth register recall Dial mode output Access pause generation and termination Function keys for: store, memory recall, register recall, LNR, pause, hold, mute, ho...