Designated client product
This product will be discontinued its production in the near term.
And it is provided for customers currently in use only, with a time limit.
It can not be available for your new project. Please select other new or
existing products.
For more information, please contact our sales office in your region.
New Japan Radio Co.,Ltd.
http://www.njr.com/
NJW1181
AUDIO PROCESSOR with BBE & Dynamic Bass Boost
s
GENERAL DESCRIPTION
The
NJW1181
is a TV audio processor with BBE Sound
Enhancement and Dynamic Bass Boost.
The
NJW1181
contains all necessary functions to process
TV audio signal such as volume control, tone control,
balance, mute and AGC function.
2
All of internal status and variables are controlled by I C
BUS.
s
PACKAGE OUTLINE
NJW1181FP1
s
FEATURES
7.5 to 13V
q
Operating Voltage
2
q
I C BUS Interface
q
BBE Sound Enhancement
(Low Boost and High Boost: 15dB max.)
q
eala(NJRC Surround)/Simulated Stereo
q
Dynamic Bass Boost Function
2
(Selectable 4-stage compression level by I C BUS)
q
AGC Circuit
q
Bi-CMOS Technology
QFP48-P1
q
Package Outline
s
BLOCK DIAGRAM
SURFIL1
TONE
-Lb
TONE
-Hb
BBE
-Lb
BBE
-Hb
HBSTb
BB1
BB2
BB3
BB4
BB-
FIXOUT
OUT1b
OUT2b
ADDIN1
SDA SCL AUX
VOL3
INb
VOL1
/
AGC
High
Boost
CVa
CVb
TONE
BBE
VOL2
CTL
CTH
CBH
I CBus
Interface
2
CSR
CBB
AGC
Control
SUR
Bass Boost
CA1
CA2
CO1
CO2
INa
VOL1
/
AGC
TONE
BBE
High
Boost
VOL2
Bias
VOL4
AGCINT
SURFIL2
TONE
-La
TONE
-Ha
BBE
-La
BBE
-Ha
HBSTa
BB
BB
BB
-AGCINT -SENSE -AGCOUT
OUT1a
OUT2a
ADDIN2
GND V+ VREF
- 1 -
NJW1181
s
PIN FUNCTION
(QFP48-P1)
38
25
39
24
48
15
1
14
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Symbol
BBELa
NC
HBSTa
BB3
BB4
BB FIXOUT
BB AGCINT
OUT1a
OUT2a
ADDIN1
CSR
CBB
AGC INT
CVa
CVb
CA1
SDA
SCL
GND
V+
AUX
VREF
CO1
CO2
No Connect
Function
Ach BBE Filter (Lo Contour)
Ach High Frequency Compensation Filter
Filter for Bass Boost 3
Filter for Bass Boost 4
Fixed Gain Bass Boost Output
AGC Smoothing Filter for Bass Boost
Ach Output 1
Ach Output 2
Mixing Input 1
Pop Noise Reduction for Surround ON/OFF
Pop Noise Reduction for Bass Boost ON/OFF
AGC Filter
Pop Noise Reduction for Volume Control
Pop Noise Reduction for Balance Control
Pop Noise Reduction for ADDIN1 Setting
SDA Data Input (I C BUS)
SCL Data Input (I
2
C BUS)
Ground
Power Supply
Auxiliary Output
Reference Voltage
Pop Noise Reduction for Output SW1 ON/OFF
Pop Noise Reduction for Output SW2 ON/OFF
2
No
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Symbol
CBH
CA2
CTH
CTL
ADDIN2
OUT2b
OUT1b
BB SENSE
BB AGCOUT
BB2
BB1
HBSTb
NC
BBELb
BBEHb
TONE-Lb
TONE-Hb
SURFIL2
INb
INa
SURFIL1
TONE-Ha
TONE-La
BBEHa
Function
Pop Noise Reduction for BBE ON/OFF
Pop Noise Reduction for ADDIN2 Setting
Pop Noise reduction for Treble Control
Pop Noise reduction for Bass Control
Mixing Input 2
Bch Output 2
Bch Output 1
AGC Boost Level Setting for Bass Boost
Dynamic Bass Boost Output
Filter for Bass Boost 2
Filter for Bass Boost 1
Bch High Frequency Compensation Filter
No Connect
Bch BBE Filter (Lo Contour)
Bch BBE Filter (Process)
Bch Bass Filter
Bch Treble Filter
Surround Filter 2
Bch Input
Ach Input
Surround Filter 1
Ach Treble Filter
Ach Bass Filter
Ach BBE Filter (Process)
-2-
NJW1181
s
ABSOLUTE MAXIMUM RATING
(Ta=25°C)
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
RATING
15
1500(note)
-20 to +75
-40 to +125
UNIT
V
mW
°C
°C
P
D
Topr
Tstg
(Note) At on a board of EIA/JEDEC specification. (76.2 × 114.3 × 1.6mm Two layers, FR-4)
s
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz,
MODE; VOL/BAL/TONE=0dB, AGC/BBE/Surround/Bass Boost=OFF, ADDIN1/ADDIN2=MUTE unless otherwise specified)
PARAMETER
Operating Voltage
Supply Current
Reference Voltage
Maximum Input Voltage
Maximum Output Voltage
Channel Balance
Balance Boost A
Balance Cut A
Balance Boost B
Balance Cut B
Total Harmonic Distortion
Maximum Gain
Minimum Gain
Channel Separation
Output Noise 1
Output Noise 2
SYMBOL
V
+
TEST CONDITION
-
No Signal
No Signal
VOL=-20dB,THD=10%
OUTPUT
VOL=0dB,THD=1%
VOL=0dB
CHS=”0”, BAL=”11111”
CHS=”1”, BAL=”11111”
Vin=1Vrms
CHS=”1”, BAL=”11111”
CHS=”0”, BAL=”11111”
Vin=1Vrms
Vo=0.5Vrms
BW=400Hz ~ 30kHz
VOL=0dB
VOL=MUTE, Vin=2Vrms
Vin=1Vrms, A-weighted
VOL = 0dB
A-weighted
VOL=MUTE
A-weighted
Logic Output: High,
R
L
=10kΩ Pull Down
Logic Output: Low,
R
L
=10kΩ pull Up
MIN.
7.5
-
4.0
2.8
-
-1.0
-2.0
-
-2.0
-
-
-2.0
-
-
-
-
-
-
4.5
0
TYP.
9.0
15
4.5
3.0
2.5
0.0
0.0
-
0.0
-
-
0.0
-100
-
-90
(31.6)
-100
(10)
-
MAX.
13.0
25
5.0
-
-
1.0
2.0
-70
2.0
-70
0.3
2.0
-90
-70
-85
(56.2)
-95
(17.8)
5.5
UNIT
V
mA
V
Vrms
Vrms
dB
dB
dB
dB
dB
%
dB
dB
dB
dBV
(µVrms)
dBV
(µVrms)
V
I
CC
V
REF
V
IM
V
OM
G
CB
BA
BST
BA
CUT
BB
BST
BB
CUT
THD
G
VMAX
G
VMIN
CS
V
NO1
V
NO2
AUX Output Voltage
V
AUX
0.5
BW: Band Width
-3-
NJW1181
♦
TONE CONTROL
PARAMETER
High Frequency Boost
High Frequency Flat
High Frequency Cut
Low Frequency Boost
Low Frequency Flat
Low Frequency Cut
SYMBOL
HF
BST
HF
FLT
HF
CUT
LF
BST
LF
FLT
LF
CUT
TEST CONDITION
BCT=”1”, TREB=”1111”, f=10kHz
TREB=”0000”, f=10kHz
BCT=”0”, TREB=”1111”, f=10kHz
BCB=”1”, BASS=”1111”, f=100Hz
BASS=”0000”, f=100Hz
BCB=”0”, BASS=”1111”, f=100Hz
MIN.
12.5
-2.0
-17.5
12.5
-2.0
-17.5
TYP.
15.0
0.0
-15.0
15.0
0.0
-15.0
MAX.
17.5
2.0
-12.5
17.5
2.0
-12.5
UNIT
dB
dB
dB
dB
dB
dB
♦
AGC CONTROL
(AGC=ON)
PARAMETER
AGC Boost
AGC Flat1
AGC Flat2
AGC Flat3
AGC Flat4
AGC Cut
SYMBOL
AGC
BST
AGC
FLT1
AGC
FLT2
AGC
FLT3
AGC
FLT4
AGC
CUT
TEST CONDITION
Vin=50mVrms, f=1kHz
Vin=125mVrms, f=1kHz
Vin=250mVrms, f=1kHz
Vin=375mVrms, f=1kHz
Vin=500mVrms, f=1kHz
Vin=2Vrms, f=1kHz
MIN.
1.5
-2.5
-2.5
-2.5
-2.5
-14
TYP.
3.5
0.0
0.0
0.0
0.0
-10
MAX.
5.5
2.5
2.5
2.5
2.5
-6.0
UNIT
dB
dB
dB
dB
dB
dB
♦
BBE
(BBE=ON)
PARAMETER
BBE Low Frequency
Boost Range
BBE High Frequency
Boost Range
SYMBOL
BBE
LOW
BBE
HIGH
TEST CONDITION
BBE-Low=”1111”, f=50Hz
BBE-High=”1111”, f=10kHz
MIN.
-
-
TYP.
15.0
15.0
MAX.
-
-
UNIT
dB
dB
♦
Surround
(Surround=ON)
PARAMETER
Simulated Surround Gain A
Simulated Surround Gain B
eala Gain High1
eala Gain HIgh2
eala Gain Low
eala2 Gain High1
eala2 Gain High2
eala2 Gain Low
SYMBOL
SR
SIMA
SR
SIMB
SR
GH1
SR
GH2
SR
GL
SR2
GH1
SR2
GH2
SR2
GL
TEST CONDITION
Ain+Bin→Aout, f=1kHz
Ain+Bin→Bout, f=1kHz
Ain→Aout, Mode=High, f=100Hz
Ain→Bout, Mode=High, f=100Hz
Ain→Aout, Mode=Low, f=100Hz
Ain→Aout, Mode=High, f=100Hz
Ain→Bout, Mode=High, f=100Hz
Ain→Aout, Mode=Low, f=100Hz
MIN.
1.0
1.0
6.0
1.5
2.0
8.0
4.5
2.0
TYP.
3.0
3.0
8.0
3.5
4.0
10.0
6.5
4.0
MAX.
5.0
5.0
10.0
5.5
6.0
12.0
8.5
6.0
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
♦
Bass Boost
(Bass Boost=ON)
PARAMETER
Bass Boost Gain High
Bass Boost Gain Mid
Bass Boost Gain Low
Bass Boost Gain High2
SYMBOL
BB
GV1
BB
GV2
BB
GV3
BB
GV4
TEST CONDITION
Ain+Bin→BB FIXOUT, f=100Hz,
SWOUT=ON, Mode=High
Ain+Bin→BB FIXOUT, f=100Hz,
SWOUT=ON, Mode=Mid
Ain+Bin→BB FIXOUT, f=100Hz,
SWOUT=ON, Mode=Low
Ain+Bin→Aout, f=100Hz,
SWOUT=ON, Mode=High
MIN.
-
-
-
-
TYP.
12.0
6.0
2.0
1.0
MAX.
-
-
-
-
UNIT
dB
dB
dB
dB
-4-