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SL1062A Datasheet PDF - System Logic Semiconductor

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SL1062A Datasheet PDF : SL1062A pdf     
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The SL1062A is an integrated circuit 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 (with reduced performance) to facilitate the use of more telephone sets connected in parallel. · 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
· Symmertical high-impedance inputs (64 KW) for dynamic, magnetic or piezo-electric microphones
· Asymmetrical high-impedance input (32 KW) for electret microphones
· DTMF signal input with confidence tone
· Mute input for pulse or DTMF dialing: active LOW (MUTE)
· Receiving amplifier for dynamic, magnetic or piezo-electric 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


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