njw1222 New Japan Radio Co.,Ltd, njw1222 Datasheet

njw1222

Manufacturer Part Number

njw1222

Description

4.1-channel Electronic Volume With 3 Band Equalizer

Manufacturer

New Japan Radio Co.,Ltd

Datasheet

1.NJW1222.pdf (23 pages)

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Download datasheet (313Kb)

selector. It includes 6-input stereo audio selector, master volume,

fader volume, sub-woofer volume, mix signal volume, 3 band

graphic equalizer, loudness, high pass filter, low pass filter, Level

Meter function.

characteristics with resistance ladder circuit.

GENERAL DESCRIPTION

FEATURES

BLOCK DIAGRAM

The NJW1222 is a 4.1-channel electronic volume with input

The NJW1222 performs low noise and low distortion

All of functions are controlled by I

Operating Voltage

Low output noise

Low THD

Multi Mode Input Selector

Input Gain

Main Volume

Loudness

Graphic Equalizer

Fader Volume

Sub-Woofer Output

Mix Signal Volume

Level Meter

Bi-CMOS Technology

Package Outline

C BUS Control

4.1-channel Electronic Volume with 3 Band Equalizer

MULTI MODE

SELECTOR

INPUT

0 to 15 dB

(1dB step)

0 to 15 dB

(1dB step)

Input Gain

C BUS interface.

LOUDNESS

0 to -15 dB

(1dB step)

0 to -15 dB

(1dB step)

0 to

+7.5 to +10V

-103dBVtyp.

0.01%typ.

6SE, 5SE+1QD, 4SE+QD, 4SE+1FD, 3SE+1FD+1QD

2SE+2FD, 2SE+1FD+2QD, 2FD+2QD mode selectable

*SE: Single end, QD: Quasi differential, FD: Full differential

0 to

+16 to -79dB/1dBstep, MUTE

0 to -79dB/1dBstep,MUTE

0 to -60dB/2dBstep,MUTE (FL,FR,RL,RR output selectable)

SSOP32

MAIN VOLUME

(1dB step)

+16 to -79

dB/Mute

fc=55,85,120Hz /

15dB/1dBstep

(2nd order)

LPF

Flat

3 bands EQ

-15 to 15dB

3 bands EQ

-15 to 15dB

(1dB step)

(DSP)

0.1uF

+16 to -79 dB/Mute

for Sub-Woofer

MAIN VOLUME

(1dB step)

0.1uF

fc=62,95,135Hz /

HPF

Flat

HPF

Flat

0 to -60dB

(2dB step)

MIX VR

/Mute

Bias

METER

LEVEL

FADER VR

0 to -79dB

(1dB step)

Sub-W VR

(1dB step)

FADER VR

0 to -79dB

(1dB step)

0 to -79dB

/Mute

/ Mute

/Mute

FADER VR

-1

FADER VR

0 to -79dB

(1dB step)

0 to -79dB

(1dB step)

/Mute

PACKAGE OUTLINE

NJW1222V

I2C

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