TEA1069A

The TEA1069A is designed as versatile speech / dialler / ringer with music-on-hold which contain all the functions needed to build a highly featured, high performance fully electronic telephone set.

TEA1069A has many features. For the speech part the first one is voltage regulator with adjustable static resistance. The second one is low DC line voltage; operates down to 1.6V (excluding polarity guard). The third one is supply for dialler part and peripherals (not stabilized). The fourth one is symmetrical high impedance inputs for dynamic, magnetic, or piezoelectric icrophones. The fifth one is asymmetrical high impedance input (32k) for electret microphones. The sixth one is asymmetrical earpiece output for dynamic, magnetic, or piezoelectric earpieces. The seventh one is internal mute to disable speech during dialling. The eighth one is confidence tone during DTMF dialling. The ninth one is line-loss compensation (line-current dependent) for microphne and earpiece amplifiers. The tenth one is gain-control curve adaptable to the exchange supply. That are all the main features.

Also some limiting values have been concluded into several points as follow. The first one is about its line current which would be max 140mA. The second one is about its ground supply current through Vee which would be max 50mA. The third one is about its tota power dissipation which would be 300mW. The fourth one is about its operating ambient temperature range which would be from -25°C to +70°C. The fifth one is about its IC storage temperature range which would be from -40°C to +125°C. The sixth one is about its positive continuous line voltage which would be max 12V. The seventh one is about its repetitive line voltage during switch-on or line interruption which would be max 13.2V. The eighth one is about its input voltage on pin Vcc which would be max 12V. The ninth one is about its input voltage on pins 1 to 7, 37, 38, 39, 41, 42 which would be from Vee-0.7V to Vcc+0.7V. And so on. For more information please contact us.