NJW1132
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SOUND PROCESSOR with SOUND ENHANCEMENT
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
The NJW1132 is a sound processor with sound
enhancement (BBE). It includes all of functions processing
audio signal for TV, such as tone control, balance, volume,
mute, and AGC functions.
Also the NJW1132 performs surround and sound
enhancement. The sound enhancement regenerates high
definitive and nearly real sound.
All of internal status and variables are controlled by I
2
C BUS
interface.
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FEATURES
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Operating Voltage (8 to 13V)
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I
2
C BUS Interface
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BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
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The AGC circuit reduces volume difference among input sources.
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Matrix Surround
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Bi-CMOS Technology
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Package Outline SDIP30,SDMP30
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BLOCK DIAGRAM
NJW1132M
P R E L I M I N A R Y
VCC
SCL
SDA
AUX0
AUX1
GND
AGC
Control
Logic
Bias
INPUT
OUTPUT
OUTPUT
Tone
Tone
Surround
INPUT
BBE
BBE
Vref
Volume
1
Volume
1
Volume
2
Volume
2
NJW1132L
NJW1132
- 3 -
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ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER
SYMBOL
RATING
UNIT
Supply Voltage
V
+
14
V
Power Dissipation
P
D
700
mW
Operating Temperature Range
Topr
-20 to +75
C
Storage Temperature Range
Tstg
-40 to +125
C
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ELECTRICAL CHARACTERISTICS ( Ta=25C, V+=9V, Rg=600
W
W
W
W
, R
L
=47k
W
W
W
W
, Vin=100mVrms/1kHz)
PARAMETER
SYM
BOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V+
8.0
9.0
13.0
V
Supply Current
I
CC
No Signal
-
30
50
mA
Reference Voltage
V
REF
No Signal
4.0
4.5
5.0
V
Maximum Input Voltage
V
IM
VOL=C3H,THD=1%
2.6
2.8
-
Vrms
Maximum Output Voltage
V
OM1
OUTPUT
VOL=FFH,THD=1%
-
2.5
-
Vrms
Channel Balance
G
CB
VOL=FFH
-1.5
0.0
1.5
dB
Balance Boost A
BA
BST
BAL="00000"
-2.0
0.0
2.0
dB
Balance Cut A
BA
CUT
BAL="11111"
-
-
-70
dB
Balance Boost B
BB
BST
BAL="00000"
-2.0
0.0
2.0
dB
Balance Cut B
BB
CUT
BAL="11111"
-
-
-70
dB
Total Harmonic Distortion
THD
Vo=0.5Vrms
BW=400Hz to 30kHz
-
-
0.5
%
Mute Level
MUTE
VOL=00H
-
-
-70
dB
Channel Separation
CS
Vin=2Vrms
-
-
-70
dB
Output Noise 1
V
NO1
VOL=FFH
BW=400Hz to 30kHz
-
-
-
-
-60
(1.0)
dBV
(mVrms)
Output Noise 2
V
NO2
VOL=00H
BW=400Hz to 30kHz
-
-
-90
(31.6)
-82
(79.4)
dBV
(uVrms)
NJW1132
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TONE CONTROL
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
High Frequency Boost
HF
BST
TREB="1111",f=10kHz
12.5
15.0
17.5
dB
High Frequency Flat
HF
FLT
TRBE="0000",f=10kHz
-2.0
0.0
2.0
dB
High Frequency Cut
HF
CUT
TRBE="1111",f=10kHz
-12.5
-15.0
-17.5
dB
Low Frequency Boost
LF
BST
BASS="1111",f=100Hz
12.5
15.0
17.5
dB
Low Frequency Flat
LF
FLT
BASS="0000",f=100Hz
-2.0
0.0
2.0
dB
Low Frequency Cut
LF
CUT
BASS="1111",f=100Hz
-12.5
-15.0
-17.5
dB
High Frequency Cut
DC Offset1
HF
DC1
TREB="1111"
"0000"
-1.0
0.0
1.0
V
High Frequency Boost
DC Offset2
HF
DC2
TREB="1111"
"0000"
-1.0
0.0
1.0
V
Low Frequency Cut
DC Offset1
LF
DC1
BASS="1111"
"0000"
-1.0
0.0
1.0
V
Low Frequency Boost
DC Offset2
LF
DC2
BASS="1111"
"0000"
-1.0
0.0
1.0
V
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SUB-TONE CONTROL
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
High Frequency Boost
SHF
BST
SUB-TREB="11",f=10kHz
2.0
3.0
4.0
dB
High Frequency Flat
SHF
FLT
SUB-TREB="00",f=10kHz
-2.0
0.0
2.0
dB
High Frequency Cut
SHF
CUT
SUB-TREB="11",f=10kHz
-4.0
-3.0
-2.0
dB
Low Frequency Boost
SLF
BST
SUB-BASS="11",f=100Hz
2.0
3.0
4.0
dB
Low Frequency Flat
SLF
FLT
SUB-BASS="00",f=100Hz
-2.0
0.0
2.0
dB
Low Frequency Cut
SLF
CUT
SUB-BASS="11",f=100Hz
-4.0
-3.0
-2.0
dB
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AGC CONTROL: AGC=1H (AGC-ON)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
AGC BOOST 1
AGC
BST1
Vin=10mVrms
0.0
2.5
5.0
dB
AGC BOOST 2
AGC
BST2
Vin=50mVrms
5.0
7.0
10.0
dB
AGC FLAT
AGC
FLT
Vin=200mVrms
-2.5
0.0
2.5
dB
AGC CUT
AGC
CUT
Vin=2Vrms
-24
-20
-16
dB
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SURROUND CONTROL: MODE=1H (SURROUND-ON)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
SURROUND MIX 1
SR
MIX1
Ain
Bout
-2.0
0.0
2.0
dB
SURROUND MIX 2
SR
MIX2
Bin
Aout
-2.0
0.0
2.0
dB
SURROUND DEF
SR
DEF
Ain-Bin(-180deg)
8.0
10.0
12.0
dB
DC Offset
SR
DC
MODE="0"
"1"
-1.0
0.0
1.0
V
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BBE =1H (BBE-ON)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
BBE low Frequency
Boost Range
BBE
LOW
BBE-Low="1111"
-
15.0
-
dB
BBE High Frequency
Boost Range
BBE
HIGH
BBE-High="1111"
-
15.0
-
dB
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APPLICATION CIRCUIT
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