Voice Switched Speakerphone circuit

Data Sheet


  • 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 Outline PLP Pins Terminal Finish Weight(mg) (Reference) Reflow soldering Flow soldering Iron soldering Packing Condition MSL Solder Foot Print
NJW1124V SSOP32 - 32 Sn2Bi 185 Yes - Yes Dry pack 1 2a

Sample & Buy

Part Number Packages Status Packing Specification Sample Buy
NJW1124V SSOP32 (Active) Contact Us Stock Check