TEA1062AT

INTEGRATED CIRCUITS DATA SHEET TEA1062; TEA1062A Low voltage transmission circuits with dialler interface Product specification Supersedes data of 1996 Dec 04 File under Integrated Circuits, IC03 1997 Sep 03 Philips Semiconductors Product specification Low voltage transmission circuits with dialler interface FEATURES Low DC line voltage; operates down to 1.6 V (excluding polarity guard) Voltage regulator with adjustable static resistance Provides a supply for external circuits Symmetrical high-impedance inputs (64 kΩ) for dynamic, magnetic or piezoelectric microphones Asymmetrical high-impedance input (32 kΩ) for electret microphones DTMF signal input with confidence tone Mute input for pulse or DTMF dialling – TEA1062: active HIGH (MUTE) – TEA1062A: active LOW (MUTE) Receiving amplifier for dynamic, magnetic or piezoelectric earpieces Large gain setting ranges on microphone and earpiece amplifiers Line loss compensation (line current dependent) for microphone and earpiece amplifiers Gain control curve adaptable to exchange supply DC line voltage adjustment facility. QUICK REFERENCE DATA SYMBOL VLN Iline line voltage operating line current normal operation with reduced performance ICC VCC internal supply current supply voltage for peripherals TEA1062 TEA1062A Gv voltage gain microphone amplifier receiving amplifier Tamb ∆Gv Vexch Rexch 1997 Sep 03 operating ambient temperature Line loss compensation gain control exchange supply voltage exchange feedi...