Electronic Volume. NJW1222 Datasheet

NJW1222 Volume. Datasheet pdf. Equivalent

Part NJW1222
Description 4.1-channel Electronic Volume
Feature NJW1222 4.1-channel Electronic Volume with 3 Band Equalizer !GENERAL DESCRIPTION The NJW1222 is a .
Manufacture New Japan Radio
Datasheet
Download NJW1222 Datasheet

NJW1222 4.1-channel Electronic Volume with 3 Band Equalizer NJW1222 Datasheet
Recommendation Recommendation Datasheet NJW1222 Datasheet





NJW1222
NJW1222
4.1-channel Electronic Volume with 3 Band Equalizer
!GENERAL DESCRIPTION
The NJW1222 is a 4.1-channel electronic volume with input
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.
The NJW1222 performs low noise and low distortion
characteristics with resistance ladder circuit.
All of functions are controlled by I2C BUS interface.
!PACKAGE OUTLINE
!FEATURES
" Operating Voltage
" I2C BUS Control
" 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
+7.5 to +10V
NJW1222V
-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 +15dB/1dBstep
+16 to -79dB/1dBstep, MUTE
0 to ±15dB/1dBstep
0 to -79dB/1dBstep,MUTE
0 to -79dB/1dBstep,MUTE
0 to -60dB/2dBstep,MUTE (FL,FR,RL,RR output selectable)
SSOP32
!BLOCK DIAGRAM
(DSP)
0.1uF 0.1uF
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
Input Gain
0 to 15 dB
(1dB step)
LOUDNESS
0 to -15 dB
(1dB step)
MAIN VOLUME
+16 to -79
dB/Mute
(1dB step)
3 bands EQ
-15 to 15dB
(1dB step)
LEVEL
METER
MIX VR
0 to -60dB
/Mute
(2dB step)
HPF
fc=62,95,135Hz /
Flat
FADER VR
0 to -79dB
/Mute
(1dB step)
FADER VR
0 to -79dB
/Mute
(1dB step)
MULTI MODE
INPUT
SELECTOR
LPF
fc=55,85,120Hz /
Flat
(2nd order)
MAIN VOLUME
for Sub-Woof er
+16 to -79 dB/Mute
(1dB step)
Sub-W VR
0 to -79dB
/ Mute
(1dB step)
-1
I2C
Input Gain
0 to 15 dB
(1dB step)
LOUDNESS
0 to -15 dB
(1dB step)
MAIN VOLUME
+16 to -79
dB/Mute
(1dB step)
3 bands EQ
-15 to 15dB
(1dB step)
HPF
fc=62,95,135Hz /
Flat
FADER VR
0 to -79dB
/Mute
(1dB step)
FADER VR
0 to -79dB
/Mute
(1dB step)
Bias
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
0.1uF 0.1uF
(DSP)
–1–



NJW1222
NJW1222
PIN CONFIGURATION
32
17
1
Multi Mode Input Selector
No. Symbol
1 IN1L
2 IN1R
3 IN2L
4 IN2R
5 IN5L
Function
Lch SE Input 1 Terminal
Lch FD Input 1 Terminal
Rch SE Input 1 Terminal
Lch FD Input 1 Ref Terminal
Lch SE Input 2 Terminal
Rch FD Input 1 Ref Terminal
Rch SE Input 2 Terminal
Rch FD Input 1 Terminal
Lch SE Input 5 Terminal
Lch QD Input 1 Terminal
6 IN5G
QD Input 1 Ref Terminal
7 IN5R
Rch SE Input 5 Terminal
Rch QD Input 1 Terminal
8 H P F 1 L Lch High Pass Filter Terminal 1
9 H P F 2 L Lch High Pass Filter Terminal 2
10 H P F 3 L Lch High Pass Filter Terminal 3
11 V R E F
Reference Voltage Terminal
12 F L O U T Lch Front Vol. Output Terminal
13 R L O U T Lch Rear Vol. Output Terminal
14 SW L OU T
Lch Sub Woofer Vol.
Output Terminal
15 GN D
Ground Terminal
16 S C L
I2C Clock Input Terminal
No. Symbol
17 S D A
18 V +
19 SW R O U T
20 R R OU T
21 F R O U T
22
MIXIN
LMOUT
23 H P F 3 R
24 H P F 2 R
25 H P F 1 R
26 I N 6 R
27 I N 6 G
28 I N 6 L
29 I N 4 R
30 I N 4 L
31 I N 3 R
32 I N 3 L
16
Function
I2C Data Input Terminal
/ Acknowledge Output
Power Supply Terminal
Rch Sub Woofer Vol.
Output Terminal
Rch Rear Vol. Output Terminal
Rch Front Vol. Output Terminal
Mix Signal Input Terminal
Level Meter Output Terminal
Rch High Pass Filter Terminal 3
Rch High Pass Filter Terminal 2
Rch High Pass Filter Terminal 1
Rch SE Input 6 Terminal
Rch QD Input 2 Terminal
QD Input 2 Ref Terminal
Lch SE Input 6 Terminal
Lch QD Input 2 Terminal
Rch SE Input 4 Terminal
Rch FD Input 2 Terminal
Lch SE Input 4 Terminal
Rch FD Input 2 Ref Terminal
Rch SE Input 3 Terminal
Lch FD Input 2 Ref Terminal
Lch SE Input 3 Terminal
Lch FD Input 2 Terminal
–2–





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