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> Ic chips:TEA1062A low volt transmission circuit dialler
Ic chips:TEA1062A low volt transmission circuit dialler
Low voltage transmission circuits with dialler interface TEA1062 TEA1062A
Low DC line voltage; operates down to 1.6 V (excluding
Voltage regulator with adjustable static resistance
Provides a supply for external circuits
Symmetrical high-impedance inputs (64 kW) for
dynamic, magnetic or piezoelectric microphones
Asymmetrical high-impedance input (32 kW) for electret
DTMF signal input with confidence tone
Mute input for pulse or DTMF dialling
Receiving amplifier for dynamic, magnetic or
Large gain setting ranges on microphone and earpiece
Line loss compensation (line current dependent) for
microphone and earpiece amplifiers
Gain control curve adaptable to exchange supply
DC line voltage adjustment facility.
- The TEA1062 and TEA1062A are integrated circuits that
perform all speech and line interface functions required in
fully electronic telephone sets. They perform electronic
switching between dialling and speech.
- The ICs operate at line voltage down to 1.6 V DC to facilitate the use of more telephone sets connected in
