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Audio & Video ICs

Voice Switched Speakerphone circuit

  • Operating voltage range (2.9 to 4.5V)
  • Force to Receive, Transmit, or Idle modes
  • Mode-watching monitor
  • Attenuator gain range between Transmit and Receive (52dB)
  • 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 (SSOP32)
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.
  • Video Door Phone
  • Conference System
  • Wireless Application
  • Security System
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
32Sn2Bi185Yes-YesDry pack 12a
Sample & Buy
Part NumberPackagesStatusPacking SpecificationSample  Buy   

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