LOW VOLTAGE TELEPHONE SPEECH CIRCUITS

DESCRIPTION The L3281 is an electronic speech circuit developed to replace hybrid circuits in telephone sets that can be operated in parallel with other phones. ■ OPERATION DOWN TO 1.6V / 6.5mA ■ DTMF & BEEP TONE INPUTS ■ EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ■ SUITABLE FOR DYNAMIC

LOW VOLTAGE TELEPHONE SPEECH CIRCUITS

LOW VOLTAGE TELEPHONE SPEECH CIRCUITS

DESCRIPTION The L3281 is an electronic speech circuit developed to replace hybrid circuits in telephone sets that can be operated in parallel with other phones. ■ OPERATION DOWN TO 1.6V / 6.5mA ■ DTMF & BEEP TONE INPUTS ■ EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ■ SUITABLE FOR DYNAMIC

LOW VOLTAGE TELEPHONE SPEECH CIRCUITS

DESCRIPTION The L3281 is an electronic speech circuit developed to replace hybrid circuits in telephone sets that can be operated in parallel with other phones. ■ OPERATION DOWN TO 1.6V / 6.5mA ■ DTMF & BEEP TONE INPUTS ■ EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ■ SUITABLE FOR DYNAMIC

SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION

RATIOMETRIC, LINEAR HALL-EFFECT SENSORS FOR HIGH-TEMPERATURE OPERATION The A3515– and A3516– are sensitive, temperature-stable linear Hall effect sensors with greatly improved offset characteristics. Ratiometric, linear Hall-effect sensors provide a voltage output that is proportional to the appl

CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES

The A3280--, A3281--, and A3283-- Hall-effect latches are ex tremely temperature-stable and stress-resistant sensors especially suited for operation over extended temperature ranges to +150°C. Superior high-temperature per for mance is made possible through dynamic offset cancellation, which reduc

CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES

The A3280--, A3281--, and A3283-- Hall-effect latches are ex tremely temperature-stable and stress-resistant sensors especially suited for operation over extended temperature ranges to +150°C. Superior high-temperature per for mance is made possible through dynamic offset cancellation, which reduc

CHOPPER-STABILIZED, PRECISION HALL-EF FECT LATCHES

FEATURES ■ Symmetrical Switch Points ■ Resistant to Physical Stress ■ Superior Temperature Stability ■ Output Short-Circuit Protection ■ Operation From Unregulated Supply ■ Reverse Battery Protection ■ Sol id-State Reliability ■ Small Size

DIGITAL CLAMP ON HiTESTER

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