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NJW1124 - Voice Switched Speakerphone circuit

General Description

The NJW1124 is a Voice Switched Speakerphone Circuit.

speakerphone system, such as the necessary amplifiers ( Microphone , Receive ,Line), attenuators, level detectors functions.

Key Features

  • Operating voltage range.
  • Force to Receive, Transmit, or Idle modes.
  • Mode.
  • watching monitor.
  • Attenuator gain range between Transmit and Receive.
  • Microphone amplifier with mute function.
  • Background noise monitor for each path.
  • Volume control range.
  • 4-point signal sensing.
  • Microphone and Receive Amplifiers pinned out for flexibility.
  • Package Outline 2.9 to 4.5V 52dB 40dB SSOP32 !.

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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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NJW1124 Voice Switched Speakerphone circuit ! GENERAL DESCRIPTION The NJW1124 is a Voice Switched Speakerphone Circuit. NJW1124 includes all of functions processing a high quality hands–free speakerphone system, such as the necessary amplifiers ( Microphone , Receive ,Line), attenuators, level detectors functions. All external capacitors are sufficient small so that ceramic capacitors are applied.