NXP Semiconductors TEA1069A
The TEA1069A offers some different timings and diode options compared to the TEA1069. It operates at line voltages down to 1.6 V DC to facilitate the use of more telephones connected in parallel.| Part No. | TEA1069A |
|---|---|
| Datasheet | TEA1069A Download |
| Manufacturer |  NXP Semiconductors |
| Description | Versatile speech/dialler/ringer |
| Buy | Stock & Price |
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)
● Notepa...
