AN6172 ,Tone RingerFeatures0 Low current operation i0 Adjustable, three-frequency tone .. BuiIt-in hysteresis ICharact ..
AN6172 ,Tone RingerAbsolute Maximum Ratings (Ta=25°C)Parameter Symbol Rating UnitSupply voltage Vcc 30 VSupply current ..
AN6215S ,AGC IC for telephone speech networkElectrical Characteristics at T = 25
AN6172