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NJW1128 Series
Voice Switched Speakerphone Circuit with Speaker Amplifier

Download Datasheet
ECAD Model: Learn more
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  • Product Longevity Program
  • RoHS
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Description

The NJW1128 is a Voice Switched Speakerphone Circuit. It includes all of functions processing a high quality handsfree speakerphone system, such as the necessary amplifiers ( Mic , Receive ,Line, Speaker ), attenuators, level detectors functions.The NJW1128 is controllable independently power-down of the speaker amplifier and the entire IC excluding the speaker amplifier.All external capacitors are sufficient small so that ceramic capacitors are applied.

Applications

  • Video Door Phone
  • Conference System
  • Wireless Application
  • Security System

Spec

Standard
Supply Voltage 3.9V to 5.5V
Structure Bi-CMOS Technology
Wide Operating Temperature -40℃ to +85℃
Junction Temp. +125℃
Package LQFP48-R3
Attenuator gain range between Transmit and Receive 52dB
Note Speaker amplifier
Microphone amplifier with mute function
Force to Receive, Transmit, or Idle modes
Mode-watching monitor
Background noise monitor for each path
Speaker switch Pin power down the speaker amplifier
4-point signal sensing
Chip disable Pin powers down the entire IC excluding
Microphone and Receive Amplifiers pinned out for flexibility

Download Datasheet

Technical Documents

Quality & Packages

Product Name Compatibility Package Marking Reliability
NJW1128FR3
  • gradeConsumer
  • plp
 LQFP48-R3 - NJW-2a-s-r
  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support
NJW1128 Series