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PDF NJW1182 Data sheet ( Hoja de datos )
| Número de pieza | NJW1182 | |
| Descripción | Audio Processor | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJW1182 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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PRELIMINARY
NJW1182
AUDIO PROCESSOR with BBE & Dynamic Bass Boost
s GENERAL DESCRIPTION
The NJW1182 is a TV audio processor with BBE Sound
Enhancement and Dynamic Bass Boost.
The NJW1182 contains all necessary functions to process
TV audio signal such as volume control, tone control,
balance, mute and AGC function.
All of internal status and variables are controlled by I2C
BUS.
s PACKAGE OUTLINE
NJW1182FP1
s FEATURES
q Operating Voltage
q I2C BUS Interface
7.5 to 13V
q eala(NJRC Surround)/Simulated Stereo
q Dynamic Bass Boost Function
q Voice Enhancement Function
q AGC Circuit
(Selectable 4-stage compression level by I2C BUS)
q Bi-CMOS Technology
q Package Outline
QFP48-P1
s BLOCK DIAGRAM
TONE TONE
SURFIL1 -Lb -Hb
LP1 LP2 LP3
HBSTb
BB2 BB4 BB
BB1 BB3 -FIXOUT OUT1b OUT2b
ADDIN1
SDA SCL AUX
VOL1
INb /
AGC
TONE
AGC
Control
SUR
VE
/
LPF
VOL1
INa /
AGC
TONE
High
Boost
VOL2
Bass Boost
High
Boost
VOL2
VOL3
I2CBus
Interface
VOL4
Bias
CVa
CVb
CTL
CTH
CVE
CSR
CBB
CA1
CA2
CO1
CO2
AGCINT
SURFIL2 TONE TONE
-La -Ha
VE1 VE2 VE3
HBSTa
BB BB
BB
-AGCINT -SENSE -AGCOUT
OUT1a OUT2a ADDIN2
GND V+ VREF
-1-
1 page  
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♦ADDIN1
PARAMETER
ADDIN1 Gain
ADDIN1 Mute
High Boost
♦ADDIN2
PARAMETER
ADDIN2 Gain
ADDIN2 Mute
PRELIMINARY
NJW1182
SYMBOL
ADD1GV
ADD1MUTE
ADD1HBST
TEST CONDITION
ADDIN1=”111”
ADDIN1=”000”
ADDIN1=”111”, f=10kHz
SYMBOL
TEST CONDITION
ADD2GV ADDIN2=”11111”
ADD2MUTE ADDIN2=”00000”
MIN.
-
-
-
TYP.
0.0
-80
2.2
MAX.
-
-
-
UNIT
dB
dB
dB
MIN.
-
-
TYP.
0.0
-80
MAX.
-
-
UNIT
dB
dB
-5-
5 Page 
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PRELIMINARY
■TERMINAL DESCRIPTION
No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
NJW1182
VOLTAGE
19 GND
Ground
--
20 V+
Power Supply
21 AUX
Auxiliary Output
-
VDD
AUX
100
-
0V
(AUX=Low)
22 VREF
Reference Voltage
VREF
240k
240k
23 CO1
24 CO2
Pop Noise Reduction for
Output SW1 ON/OFF
Pop Noise Reduction for
Output SW2 ON/OFF
VDD
CO1
CO2
48k
V+/2
0V
(OUT1/2=Mute)
- 11 -
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NJW1182.PDF ] | |
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