NJW1133A
- 1 -
AUDIO PROCESSOR
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
The NJW1133A is an audio processor. It includes all of
functions processing audio signal for TV, such as tone
control, balance, volume, mute, and AGC(Auto Gain Control)
functions.
All of internal status and variables are controlled by I
2
C
BUS interface.
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FEATURES
NJW1133AM
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Operating Voltage 8 to 13V
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I
2
C BUS Interface
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AGC Circuit (It 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 SDMP30
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BLOCK DIAGRAM
Vcc
SCL
SDA
AUX0
AUX1
GND
AGC
Control
Logic
Bias
IN1a
OUT2b
OUT2a
Tone
(Bass/Treble)
Matrix
Surround
IN1b
VREF
Volume
1
Volume
1
Volume
2
Volume
2
IN2b
OUT1a IN2a
TONE
Ha
TONE
La
TONE
Hb
TONE
Lb
AGC1
AGC2
PS
CTH
CTL
CVA
CVB
Tone
(Bass/Treble)
OUT1b
NJW1133A
- 2 -
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PIN FUNCTION
No. Symbol
Function
No
Symbol
Function
1
IN1a
Ach Input
16
Vcc
Supply Voltage
2
NC
No Connected
17
AUX1
Auxiliary Output1
3
NC
No Connected
18
AUX0
Auxiliary Output0
4
OUT1a
Ach Output for the Other Accessories
19
CTL
DAC Output for Tone Low Frequency
5
IN2a
Ach Input From the Other Accessories
20
CTH
DAC Output for Tone High Frequency
6
TONE-Ha Ach Treble Filter
21
VREF
Reference Voltage
7
TONE-La
Ach Bass Filter
22
PS
Surround Phase Shift Filter
8
OUT2a
Ach Output
23
OUT2b
Bch Output
9
AGC1
AGC1
24
TONE-Lb
Bch Bass Filter
10 AGC2
AGC2
25
TONE-Hb
Bch
Treble
Filter
11
CVB
DAC Output for Bch Volume & Balance
26
IN2b
Bch Input from the Other Accessories
12
CVA
DAC Output for Ach Volume & Balance
27
OUT1b
Bch Output for the Other Accessories
13
SDA
SDA Data Input (I
2
C BUS)
28
NC
No Connected
14
SCL
SCL Data Input (I
2
C BUS)
29
NC
No Connected
15 GND
GND
30
IN1b Bch
Input
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
30
29
28
27
26
IN1a
TONE-Ha
TONE-La
IN2a
OUT2a
AGC1
AGC2
CVB
CVA
SDA
SCL
GND
IN1b
TONE-Hb
TONE-Lb
IN2b
OUT2b
PS
VREF
CTH
25
24
23
22
21
CTL
AUX0
AUX1
Vcc
20
19
18
17
16
OUT1a
OUT1b
NC
NC
NC
NC
NJW1133A
- 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
, R
L
=47k
, Vin=100mVrms/1kHz)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
+
8.0 9.0 13.0 V
Supply Current
I
CC
No
Signal
- 20 30 mA
Reference Voltage
V
REF
No
Signal
4.0 4.5 5.0
V
Maximum Input Voltage
V
IM
VOL=C3H,THD=1%
2.3 2.5 - Vrms
Maximum Output Voltage
V
OM
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
CHS="0",BAL="11111"
-2.0 0.0 2.0
dB
Balance Cut A
BA
CUT
CHS="1",BAL="11111"
Vin = 1Vrms
- -
-70
dB
Balance Boost B
BB
BST
CHS="1",BAL="11111"
-2.0 0.0 2.0
dB
Balance Cut B
BB
CUT
CHS="0",BAL="11111"
Vin = 1Vrms
- -
-70
dB
Total Harmonic Distortion
THD
Vo=0.5Vrms
BW=400Hz to 30kHz
- -
0.5 %
Maximum Gain
G
VMAX
VOL=FFH(0dB)
-2.0 0.0 2.0
dB
Minimum Gain
G
VMIN
VOL=00H(MUTE)
-
-
-70
dB
Channel Separation
CS
Vin=2Vrms
-
-
-70
dB
Output Noise 1
V
NO1
VOL=FFH(0dB)
BW=400Hz to 30kHz
-
-
-80
(100)
-70
(316)
dBV
(Vrms)
Output Noise 2
V
NO2
VOL=00H(MUTE)
BW=400Hz to 30kHz
-
-
-90
(31.6)
-82
(79.4)
dBV
(Vrms)
Logic Output : High
4.5
-
5.0
AUX Output Voltage
V
AUX
Logic Output : Low
0
-
0.3
V
BW : Band Width
NJW1133A
- 4 -
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TONE CONTROL( Ta=25
C, V
+
=9V, Rg=600
, R
L
=47k
, Vin=100mVrms/1kHz)
PARAMETER SYMBOL TEST
CONDITION MIN.
TYP.
MAX.
UNIT
High Frequency Boost
HF
BST
BCT="1",TREB="1111",
f=10kHz
12.5 15.0 17.5 dB
High Frequency Flat
HF
FLT
TREB="0000",f=10kHz
-2.0 0.0 2.0
dB
High Frequency Cut
HF
CUT
BCT="0",TRBE="1111",
f=10kHz
-17.5 -15.0 -12.5 dB
Low Frequency Boost
LF
BST
BCB="1",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
BCB="0",BASS="1111",
f=100Hz
-17.5 -15.0 -12.5 dB
High Frequency Cut
DC Offset1
HF
DC1
BCT="0",TREB="1111"
"0000"
-1.0 0.0 1.0 V
High Frequency Boost
DC Offset2
HF
DC2
BCT="1",TREB="1111"
"0000"
-1.0 0.0 1.0 V
Low Frequency Cut
DC Offset1
LF
DC1
BCB="0",BASS="1111"
"0000"
-1.0 0.0 1.0 V
Low Frequency Boost
DC Offset2
LF
DC2
BCB="1",BASS="1111"
"0000"
-1.0 0.0 1.0 V
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SUB-TONE CONTROL( Ta=25
C, V
+
=9V, Rg=600
, R
L
=47k
, Vin=100mVrms)
PARAMETER SYMBOL TEST
CONDITION MIN.
TYP.
MAX.
UNIT
High Frequency Boost
SHF
BST
BCST="0",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
BCST="0",SUB-TREB="11",
f=10kHz
-4.0 -3.0 -2.0 dB
Low Frequency Boost
SLF
BST
BCSB="1",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
BCSB="1",SUB-BASS="11",
f=100Hz
-4.0 -3.0 -2.0 dB
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AGC CONTROL: AGC=1H (AGC-ON) ( Ta=25C, V+=9V, Rg=600
, R
L
=47k
)
PARAMETER SYMBOL TEST
CONDITION MIN.
TYP.
MAX.
UNIT
AGC BOOST
AGC
BST
Vin=50mVrms,
f=1kHz
1.5 3.5 5.5 dB
AGC FLAT
AGC
FLT
Vin=150mVrms,
f=1kHz
-2.5 0.0 2.5 dB
AGC CUT
AGC
CUT
Vin=2Vrms,
f=1kHz
-14
-10
-6.0
dB
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SURROUND CONTROL(Ta=25C,V+=9V,Rg=600
,R
L
=47k
,Vin=100mVrms/1kHz)
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
SUR="0"
"1" -1.0
0.0
1.0
V
NJW1133A
- 5 -
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APPLICATION CIRCUIT
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
30
29
28
27
26
IN1a
NC
NC
TONE-Ha
TONE-La
OUT2a
AGC1
AGC2
16
17
18
19
20
CVB
CVA
SDA
SCL
GND
IN1b
NC
NC
TONE-Hb
TONE-Lb
OUT2b
PS
VREF
CTH
25
24
23
22
21
CTL
AUX0
AUX1
Vcc
4.7
4.7n
100n
4.7
4.7
4.7
1
100n
4.7
4.7
4.7
4.7n
100n
4.7
4.7
4.7
100n
4.7
4.7
4.7
22
OUT1a
IN2a
IN2b
OUT1b
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