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PDF NJW1147 Data sheet ( Hoja de datos )
| Número de pieza | NJW1147 | |
| Descripción | AUDIO PROCESSOR with BBE ViVA | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJW1147
P R E L I M I N A LY
AUDIO PROCESSOR with BBE ViVA
s GENERAL DESCRIPTION
The NJW1147 is a TV audio processor with BBE ViVA High
Definition 3D Sound process. BBE's traditional sound clarity
enhancement technology is combined with the new ViVA 3D
process to create an authentic and exciting spatial effect.
BBE ViVA is compatible with news, music and movie
programs as well as video games.
The NJW1147 contains all necessary functions to process
TV audio signal such as volume control, tone control,
balance, mute, AGC and NJRC's proprietary surround sound
process, eala. The eala reproduces a natural surround
sound with clear vocal orientation.
The total modes and variables are controlled by the I2C bus
interface.
s PACKAGE OUTLINE
NJW1147M
s FEATURES
q Operating Voltage
8 to 13V
q I2C BUS Interface
q BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
q BBE ViVA High Definition 3D Sound
q eala (NJRC Original Surround)
q AGC Circuit (It reduces volume differenceDaamtaoSnhgeientp4uUt.csomurces.)
q Simulated Surround
q Bi-CMOS Technology
q Package Outline
SDMP30, SDIP30
NJW1147L
DataShee
s BLOCK DIAGRAM
AGC
VOL1
VOL1
ViVA
HD3D
&
e ala
&
Sim ulated
Surround
BBE
BBE
TONE
VOL2
I2C Bus
Interface
TONE
VOL2
Bias
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♦ SURROUND (SURROUND-ON)
PARAMETER
SYMBOL
Surround Gain1
SRGAIN1
Surround Gain2
SRGAIN2
Surround Gain3
SRGAIN3
Surround Gain4
SRGAIN 4
Simulated Surround Gain1
SRSIM1
Simulated Surround Gain2
SRSIM2
TEST CONDITION
Ain→Aout, f=100Hz
SUR0=”0”, SUR=”1”
Ain→Bout, f=100Hz
SUR0=”0”, SUR=”1”
Ain→Aout, f=100Hz
SUR0=”1”, SUR=”1”
Ain→Bout, f=100Hz
SUR0=”1”, SUR=”1”
Ain+Bin→Aout, f=1kHz
SUR0=”1”, SUR=”0”
Ain+Bin→Bout, f=1kHz
SUR0=”1”, SUR=”0”
NJW1147
MIN.
3.5
-3.0
8.0
5.0
1.0
1.0
TYP.
5.5
-1.0
10.0
7.0
3.0
3.0
MAX.
7.5
1.0
12.0
9.0
5.0
5.0
UNIT
dB
dB
dB
dB
dB
dB
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NJW1147
s DEFINITION OF I2C REGISTER
♦I2C BUS FORMAT
MSB
LSB
MSB
LSB
S Slave Address A Select Address
MSB
A
1bit 8bit
1bit 8bit 1bit
Data
8bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦ SLAVE ADDRESS
MSB
LSB
1 0 0 0 0 0 1 R/W
LSB
A
P
1bit 1bit
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R/W=0: Receive Only
R/W=1: No Output Data
♦ CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, AGC, Surround, Tone Control, BBE, AUX).
The auto increment function cycles the select address as follows.
00H¡01H¡02H¡03H¡04H¡05H¡00H
Select
Address
00H
01H
02H
03H
04H
05H
D7
CHS
BCB
BCT
OUT
BIT
D6 D5 D4 D3
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VOL
BAL
BASS
TREB
BBE (Lo Contour)
Don’t care Don’t care SUR0
AGC1
D2 D1 D0
AGC
SUR
BCSB
SUB-BASS
BCST
SUB-TREB
BBE (Process)
AGC0
AUX1
AUX0
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♦ CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
Select
BIT
Address
D7
D6
D5
D4
D3
D2
D1
D0
00H 0 0 0 0 0 0 0 0
01H 0 0 0 0 0 0 0 0
02H 0 0 0 0 0 0 0 0
03H 0 0 0 0 0 0 0 0
04H 0 0 0 0 0 0 0 0
05H 0 0 0 0 0 0 0 0
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| PDF Descargar | [ Datasheet NJW1147.PDF ] | |
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