NJW1134
S
RS
TM
TENTATIVE
AUDIO PROCESSOR
I
GENERAL DESCRIPTION
I
PACKAGE OUTLINE
The
NJW1134
is a sound processor includes both the
BBE sound enhancement and SRS 3D-Stereo. It includes all
of the functions processing audio signal for TV, such as tone
control, balance, volume, mute, and AGC functions.
Also the
NJW1134
performs sound enhancement and
surround. The sound enhancement regenerates high
definitive and nearly real sound, and SRS 3D-Stereo
regenerates 3D surround sound with two speakers.
2
All of the internal status and variables are controlled by I C
NJW1134G
BUS interface.
I
FEATURES
G
Operating Voltage
2
(8 to 13V)
G
I C BUS Interface
G
BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
G
Internal 6 Input Audio Selectors and Monitor Output
G
The AGC circuit reduces volume difference among input sources.
2
G
Variable AGC Compression Level via I C (4-levels)
G
Includes Dual Surround (SRS 3D-Stereo and NJRC Original Simulated Stereo)
2
G
Variable Surround Effect Level via I C (SRS mode, 2-Levels)
G
Low Noise VCA
G
Bi-CMOS Technology
G
Package Outline (SOP40)
I
BLOCK DIAGRAM
SRS
FIL2
TONEHa
TONELa
BBE1a
BBE2a
MONa
OUTa
AGC
LINEa
CVA
CVB
CTH
CTL
CSR
IN1a
IN2a
IN3a
IN4a
IN5a
SURROUND
IN6a
CONTROL
LOGIC
AGC
IN1b
IN2b
IN3b
INPUT
IN4b SELECTOR
IN5b
-2dB
IN6b
+4.5dB
BIAS
VCC
VOLUME1
BBE
TONE
VOLUME2
CSB
INPUT
SELECTOR
VOLUME1
BBE
TONE
VOLUME2
+4.5dB
-2dB
SRS
3D-Stereo
&
NJRC Original
Simulated Stereo
SDA
SCL
GND
TONEHb
SRS/SS
FIL1
MONb
TONELb
BBE1b
BBE2b
LINEb
OUTb
VREF
d
-1-
NJW1134
I
PIN CONFIGURATION
Ach Input Selector 1
Ach Input Selector 2
Ach Input Selector 3
Ach Input Selector 4
Ach Input Selector 5
Ach Input Selector 6
Ach Monitor Output(-2dB)
Surround Filter 1
Ach BBE Filter 1
1
2
3
4
5
6
7
8
9
IN1a
IN2a
IN3a
IN4a
IN5a
IN6a
MONa
SRS/SS FIL1
BBE1a
BBE2a
TONE-Ha
TONE-La
LINEa
OUTa
AGC
CVa
CVb
SDA
SCL
GND
IN1b 40
IN2b 39
IN3b 38
IN4b 37
IN5b 36
IN6b 35
MONb 34
SRS FIL2 33
BBE1b 32
BBE2b 31
TONE-Hb 30
TONE-Lb 29
LINEb 28
OUTb 27
CSR
26
Bch Input Selector 1
Bch Input Selector 2
Bch Input Selector 3
Bch Input Selector 4
Bch Input Selector 5
Bch Input Selector 6
Bch Monitor Output(-2dB)
Surround Filter 2
Bch BBE Filter 1
Bch BBE Filter 2
Bch Tone High Frequency
Bch Tone Low Frequency
Bch Line Output (4.5dB)
Bch Main Output (0dB)
DAC Output for Surround ON/OFF
DAC Output for Tone High Frequency
DAC Output for Tone Low Frequency
DAC Output for BBE ON/OFF
Reference Voltage
Power Supply
Ach BBE Filter 2 10
Ach Tone High Frequency 11
Ach Tone Low Frequency
Ach Line Output (4.5dB)
Ach Main Output (0dB)
12
13
14
AGC 15
DAC Output for Ach Volueme & Balance
DAC Output for Bch Volueme & Balance
I
2
C Bus SDA
I
2
C Bus SCL
16
17
18
19
CTH 25
CTL
24
CSB 23
Vref
V+
22
21
GND 20
d
- 2-
NJW1134
I
ABSOLUTE MAXIMUM RATING
(Ta=25∞C)
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
RATING
14
700
-20 to +75
-40 to +125
UNIT
V
mW
∞C
∞C
P
D
Topr
Tstg
I
ELECTRICAL CHARACTERISTICS
( Ta=25∞C, V =9V, Rg=600W, R
L
=47kW, Vin=100mVrms/1kHz)
PARAMETER
Operating Voltage
Supply Current
Reference Voltage
Maximum Input Voltage
Maximum Output Voltage1
Maximum Output Voltage2
MON OUT Gain
LINEOUT Gain
Maximum Gain
Minimum Gain
Channel Balance
Balance Level A-A
Balance Level A-B
Balance Level B-B
Balance Level B-A
Total Harmonic Distortion
Input Selector Cross Talk
Channel Separation
Output Noise 1
Output Noise 2
Output Noise 3
Output Noise 4
SYMBOL
V
+
+
TEST CONDITION
MIN.
8.0
TYP.
9.0
30
4.5
3.0
2.5
2.5
-2.0
4.5
0.0
-
0.0
0.0
-
0.0
-
0.02
-
-
-90
(31.6)
-106
(5.0)
-85
(56.2)
-101
(8.9)
MAX.
13.0
50
5.0
-
-
-
-
6.5
2.0
-70
1.5
2.0
-70
2.0
-70
0.1
-70
-70
-85
(56.2)
-96
-80
(100)
-91
UNIT
V
mA
V
Vrms
Vrms
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
dB
dB
dBV
(mVrms)
dBV
(mVrms)
dBV
(mVrms)
dBV
(mVrms)
I
CC
V
REF
V
IM
V
OM1
V
OM2
G
VMON
G
VLINE
G
VMAX
G
VMIN
G
CB
BAL
AA
BAL
AB
BAL
BB
BAL
BA
THD
CT
CS
V
NO1
V
NO2
V
NO3
V
NO4
No Signal
No Signal
VOL=-20dB, THD=1%
OUTPUT
VOL=0dB, THD=1%
LINEOUT
VOL=0dB, THD=1%
MON OUT
LINEOUT, VOL=0dB
VOL=0dB
VOL=Mute, Vin=1Vrms
BW=400Hz to 30kHz
VOL=0dB
Full panning to Ach, OUTa
Full panning to Ach, OUTb
Vin=1Vrms
BW=400Hz to 30kHz
Full panning to Bch, OUTb
Full panning to Bch, OUTa
Vin=1Vrms
BW=400Hz to 30kHz
Vo=0.5Vrms
BW=400Hz to 30kHz
Vin=1Vrms
BW=400Hz to 30kHz
Vin=1Vrms
BW=400Hz to 30kHz
VOL=0dB
BW=400Hz to 30kHz
VOL=Mute
BW=400Hz to 30kHz
LINEOUT, VOL=0dB
BW=400Hz to 30kHz
LINEOUT, VOL=Mute
BW=400Hz to 30kHz
-
4.0
2.8
-
-
-
2.5
-2.0
-
-1.5
-2.0
-
-2.0
-
-
-
-
-
-
-
-
-
-
-
-
d
-3-
NJW1134
I
ELECTRICAL CHARACTERISTICS
( Ta=25∞C, V =9V, Rg=600W, R
L
=47kW, Vin=100mVrms/1kHz)
G
TONE CONTROL
(Tone Control-ON)
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
TREBLE=+15dB, f=10kHz
TRBE=0dB, f=10kHz
TREBLE=-15dB, f=10kHz
BASS=+15dB, f=50Hz
BASS=0dB, f=50Hz
BASS=-15dB, f=50Hz
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
+
G
SUB-TONE CONTROL
(Sub-Tone Control-ON)
PARAMETER
High Frequency Boost
High Frequency Flat
High Frequency Cut
Low Frequency Boost
Low Frequency Flat
Low Frequency Cut
G
AGC
(AGC-ON)
PARAMETER
AGC BOOST
AGC FLAT 1
AGC FLAT 2
AGC FLAT 3
AGC FLAT 4
AGC CUT
G
BBE
(BBE-ON)
PARAMETER
BBE Low Frequency
Boost Level
BBE High Frequency
Boost Level
SYMBOL
BBE
LOW
BBE
HIGH
TEST CONDITION
BBE-Low=+15dB
BBE-High=+15dB
MIN.
-
-
TYP.
15.0
15.0
MAX.
-
-
UNIT
dB
dB
SYMBOL
AGC
BST
AGC
FLT1
AGC
FLT2
AGC
FLT3
AGC
FLT4
AGC
CUT
TEST CONDITION
Vin=50mVrms
Vin=300mVrms
Vin=400mVrms
Vin=500mVrms
Vin=600mVrms
Vin=2Vrms
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
SYMBOL
SHF
BST
SHF
FLT
SHF
CUT
SLF
BST
SLF
FLT
SLF
CUT
TEST CONDITION
SUB-TREBLE=+3dB,
f=10kHz
SUB-TREBLE=0dB,
f=10kHz
SUB-TREBLE=-3dB,
f=10kHz
SUB-BASS=+3dB,
f=50Hz
SUB-BASS=0dB,
f=50Hz
SUB-BASS=-3dB,
f=50Hz
MIN.
2.0
-2.0
-4.0
2.0
-2.0
-4.0
TYP.
3.0
0.0
-3.0
3.0
0.0
-3.0
MAX.
4.0
2.0
-2.0
4.0
2.0
-2.0
UNIT
dB
dB
dB
dB
dB
dB
d
- 4-
NJW1134
I
ELECTRICAL CHARACTERISTICS
( Ta=25∞C, V =9V, Rg=600W, R
L
=47kW, Vin=100mVrms)
G
SIMULATED SURROUND
PARAMETER
SURROUND SIM A
SURROUND SIM B
G
SRS 3D-Stereo
(Simulated Surround-ON, f=1kHz)
SYMBOL
SR
SIMA
SR
SIMB
TEST CONDITION
Ain+Bin
Æ
Aout
Ain+Bin
Æ
Bout
MIN.
1.0
1.0
TYP.
3.0
3.0
MAX.
5.0
5.0
UNIT
dB
dB
+
(SRS 3D Stereo-ON, f=125Hz)
SYMBOL
SRS
GH1
SRS
GH2
SRS
GL1
SRS
GL2
SRS
GH3
SRS
GH4
TEST CONDITION
Ain
Æ
Aout, Mode=High
Bin
Æ
Bout, Mode=High
Ain
Æ
Aout, Mode=Low
Bin
Æ
Bout, Mode=Low
Bin
Æ
Aout, Mode=High
Ain
Æ
Bout, Mode=High
MIN.
10.0
10.0
7.0
7.0
6.8
6.8
TYP.
12.0
12.0
9.0
9.0
8.8
8.8
MAX.
14.0
14.0
11.0
11.0
10.8
10.8
UNIT
dB
dB
dB
dB
dB
dB
PARAMETER
SRS GAIN HIGH 1
SRS GAIN HIGH 2
SRS GAIN LOW 1
SRS GAIN LOW 2
SRS GAIN HIGH 3
SRS GAIN HIGH 4
d
-5-
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