NJW1128 Series
Voice Switched Speakerphone Circuit with Speaker Amplifier
NJW1128 Series
Voice Switched Speakerphone Circuit with Speaker Amplifier
Download Datasheet
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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
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Spec
Consumer 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 -
Technical
Documents -
Quality &
PackagesProduct Name Compatibility Package Marking Reliability NJW1128FR3 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.
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Sample / Buy
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Buy Online
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Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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