JRC NJW1142 Audio Processor Datasheet

NJW1142 is a sound processor that includes all of the functions required to process the audio signal for TV, such as tone control, balance, volume, mute, and AGC functions. It also performs eala (NJRC Original Surround) which is regenerated 3D surround sound with only two speakers. All of the internal status and variables are controlled by I2C BUS interface.


JRC NJW1142 Audio Processor Datasheet - cover page
Brand
JRC
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
15
File format
PDF
File size
117 KB
Published
12 June, 2012
Updated
30 September, 2023
MD5 checksum
44D5584AEEB4580596DFC1413E488037

About this manual

The NJW1142 is a sound processor designed to handle audio signals for television applications. It integrates functions such as tone control, balance, volume, mute, and automatic gain control (AGC). A key feature is its ability to perform 'eala' (NJRC Original Surround System), which regenerates 3D surround sound using only two speakers. The device is controlled via a PC BUS interface.

What's inside

  • General Description
  • Features
  • Package Outline
  • Pin Configuration
  • Absolute Maximum Rating
  • Electrical Characteristics
  • Tone Control
  • AGC and Surround
  • I2C Bus Block Characteristics
  • Instruction Code

Specifications

Operating Voltage8 to 10V
Supply Current30 to 50 mA
Operating Temperature Range-20 to +75 °C
TechnologyBi-CMOS
Package TypeSDMP30
Maximum Input Voltage3.0 Vrms
Maximum Output Voltage2.5 Vrms
Total Harmonic Distortion0.5 %

Frequently asked questions

What functions does the NJW1142 perform?

It processes audio signals for TV including tone control, balance, volume, mute, and AGC functions, and performs simulated 3D surround sound.

How is the NJW1142 controlled?

All internal status and variables are controlled by a PC BUS interface.

What is the operating voltage range?

The operating voltage range is 8.0V to 10.0V.

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