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MSC1157 - Speaker Drive Amplifier

General Description

The MSC1157, designed specifically to operate at a low voltage with low current consumption, is a power amplifier developed for driving a speaker for a voice IC.

The voltage gains can be adjusted over a range of up to ten.

Key Features

  • Low voltage operation.
  • Low current dissipation Operating current.
  • Standby function.
  • High output current.
  • Differential outputs : 2.0 to 6.0 V (Single power supply) : : : : 1.6mA without load (typ. ) Current dissipation less than 1 mA in standby 350mA peak A speaker can be directly connected between differential outputs. : Gain can be adjusted by use of an external resistor.
  • Adjustable gain.
  • Package options: 8-pin plastic DIP (DIP8-P.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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E2D0048-39-22 ¡ Semiconductor MSC1157 ¡ Semiconductor Speaker Drive Amplifier This version: Feb. 1999 MSC1157 Previous version: May. 1997 GENERAL DESCRIPTION The MSC1157, designed specifically to operate at a low voltage with low current consumption, is a power amplifier developed for driving a speaker for a voice IC. The voltage gains can be adjusted over a range of up to ten. The differential output can directly drive a speaker without any output coupling capacitors. The MSC 1157, because of its ability to stand by, is ideally suitable for portable equipment applications powered by a battery. FEATURES • Low voltage operation • Low current dissipation Operating current • Standby function • High output current • Differential outputs : 2.0 to 6.0 V (Single power supply) : : : : 1.