NJW1133A
AUDIO PROCESSOR
sGENERAL
DESCRIPTION
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.
2
All of internal status and variables are controlled by I C
BUS interface.
sPACKAGE
OUTLINE
sFEATURES
8 to 13V
q
Operating Voltage
2
q
I C BUS Interface
q
AGC Circuit (It reduces volume difference among input sources.)
q
Matrix Surround
q
Bi-CMOS Technology
SDMP30
q
Package Outline
sBLOCK
DIAGRAM
NJW1133AM
AGC1
OUT1a IN2a
TONE TONE
–Ha –La
PS
OUT2a
CTH
CTL
IN1a
Volume
1
Tone
(Bass/Treble)
Volume
2
CVA
CVB
Control
Logic
AGC
Matrix
Surround
AUX0
AUX1
SDA
IN1b
Volume
1
Tone
(Bass/Treble)
SCL
Volume
2
Bias
GND
Vcc
AGC2
OUT1b IN2b TONE TONE
–Hb –Lb
OUT2b
VREF
-1-
NJW1133A
s
PIN FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
IN1a
NC
NC
OUT1a
IN2a
TONE-Ha
TONE-La
OUT2a
AGC1
AGC2
CVB
CVA
SDA
SCL
GND
IN1b
NC
NC
OUT1b
IN2b
TONE-Hb
TONE-Lb
OUT2b
PS
VREF
CTH
CTL
AUX0
AUX1
Vcc
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Symbol
IN1a
NC
NC
OUT1a
IN2a
TONE-Ha
TONE-La
OUT2a
AGC1
AGC2
CVB
CVA
SDA
SCL
GND
Ach Input
No Connected
No Connected
Function
No
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol
Vcc
AUX1
AUX0
CTL
CTH
VREF
PS
OUT2b
TONE-Lb
TONE-Hb
IN2b
OUT1b
NC
NC
IN1b
Supply Voltage
Auxiliary Output1
Auxiliary Output0
Function
Ach Output for the Other Accessories
Ach Input From the Other Accessories
Ach Treble Filter
Ach Bass Filter
Ach Output
AGC1
AGC2
DAC Output for Bch Volume & Balance
DAC Output for Ach Volume & Balance
SDA Data Input (I
2
C BUS)
SCL Data Input (I
2
C BUS)
GND
DAC Output for Tone Low Frequency
DAC Output for Tone High Frequency
Reference Voltage
Surround Phase Shift Filter
Bch Output
Bch Bass Filter
Bch Treble Filter
Bch Input from the Other Accessories
Bch Output for the Other Accessories
No Connected
No Connected
Bch Input
-2-
NJW1133A
sABSOLUTE
MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
V
+
RATING
14
700
-20 to +75
-40 to +125
UNIT
V
mW
°C
°C
P
D
Topr
Tstg
sELECTRICAL
CHARACTERISTICS ( Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz)
Ω
Ω
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
AUX Output Voltage
SYMBOL
V
+
TEST CONDITION
MIN.
8.0
TYP.
9.0
20
4.5
2.5
2.5
0.0
0.0
-
0.0
-
-
0.0
-
-
-80
(100)
-90
(31.6)
-
-
MAX.
13.0
30
5.0
-
-
1.5
2.0
-70
2.0
-70
0.5
2.0
-70
-70
-70
(316)
-82
(79.4)
5.0
0.3
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
V
AUX
No Signal
No Signal
VOL=C3H,THD=1%
OUTPUT
VOL=FFH,THD=1%
VOL=FFH
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 to 30kHz
VOL=FFH(0dB)
VOL=00H(MUTE)
Vin=2Vrms
VOL=FFH(0dB)
BW=400Hz to 30kHz
VOL=00H(MUTE)
BW=400Hz to 30kHz
Logic Output : High
Logic Output : Low
-
4.0
2.3
-
-1.5
-2.0
-
-2.0
-
-
-2.0
-
-
-
-
-
-
4.5
0
BW : Band Width
-3-
NJW1133A
q
TONE CONTROL(
Ta=25°C, V =9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz)
PARAMETER
High Frequency Boost
High Frequency Flat
High Frequency Cut
Low Frequency Boost
Low Frequency Flat
Low Frequency Cut
High Frequency Cut
DC Offset1
High Frequency Boost
DC Offset2
Low Frequency Cut
DC Offset1
Low Frequency Boost
DC Offset2
SYMBOL
HF
BST
HF
FLT
HF
CUT
LF
BST
LF
FLT
LF
CUT
HF
DC1
HF
DC2
LF
DC1
LF
DC2
TEST CONDITION
BCT=”1”,TREB=”1111”, f=10kHz
TREB=”0000”,f=10kHz
BCT=”0”,TRBE=”1111”, f=10kHz
BCB=”1”,BASS=”1111”,
f=100Hz
BASS=”0000”,f=100Hz
BCB=”0”,BASS=”1111”,
f=100Hz
BCT=”0”,TREB=”1111”
→”0000”
BCT=”1”,TREB=”1111”
→”0000”
BCB=”0”,BASS=”1111”
→”0000”
BCB=”1”,BASS=”1111”
→”0000”
MIN.
12.5
-2.0
-17.5
12.5
-2.0
-17.5
-1.0
-1.0
-1.0
-1.0
TYP.
15.0
0.0
-15.0
15.0
0.0
-15.0
0.0
0.0
0.0
0.0
MAX.
17.5
2.0
-12.5
17.5
2.0
-12.5
1.0
1.0
1.0
1.0
UNIT
dB
dB
dB
dB
dB
dB
V
V
V
V
+
q
SUB-TONE CONTROL(
Ta=25°C, V =9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms)
PARAMETER
High Frequency Boost
High Frequency Flat
High Frequency Cut
Low Frequency Boost
Low Frequency Flat
Low Frequency Cut
SYMBOL
SHF
BST
SHF
FLT
SHF
CUT
SLF
BST
SLF
FLT
SLF
CUT
TEST CONDITION
BCST=”0”,SUB-TREB=”11”,
f=10kHz
SUB-TREB=”00”,f=10kHz
BCST=”0”,SUB-TREB=”11”,
f=10kHz
BCSB=”1”,SUB-BASS=”11”,
f=100Hz
SUB-BASS=”00”,f=100Hz
BCSB=”1”,SUB-BASS=”11”,
f=100Hz
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
+
q
AGC CONTROL: AGC=1H
(AGC-ON) ( Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ )
PARAMETER
AGC BOOST
AGC FLAT
AGC CUT
SYMBOL
AGC
BST
AGC
FLT
AGC
CUT
TEST CONDITION
Vin=50mVrms, f=1kHz
Vin=150mVrms, f=1kHz
Vin=2Vrms, f=1kHz
MIN.
1.5
-2.5
-14
TYP.
3.5
0.0
-10
MAX.
5.5
2.5
-6.0
UNIT
dB
dB
dB
q
SURROUND CONTROL(Ta=25°C,V+=9V,Rg=600Ω,R
L
=47kΩ,Vin=100mVrms/1kHz)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
SURROUND MIX 1
SURROUND MIX 2
SURROUND DEF
DC Offset
SR
MIX1
SR
MIX2
SR
DEF
SR
DC
Ain
→
Bout
Bin
→
Aout
Ain-Bin(-180deg)
SUR=”0”
→”1”
-2.0
-2.0
8.0
-1.0
0.0
0.0
10.0
0.0
MAX.
2.0
2.0
12.0
1.0
UNIT
dB
dB
dB
V
-4-
NJW1133A
sAPPLICATION
CIRCUIT
4.7µ
1
2
3
4.7µ
4.7µ
4.7n
100n
4.7µ
8
1µ
100n
4.7µ
4.7µ
9
10
11
12
13
14
15
OUT2a
AGC1
AGC2
CVB
CVA
SDA
SCL
GND
OUT2b
PS
VREF
CTH
CTL
AUX0
AUX1
Vcc
23
22
21
20
19
18
17
16
4
5
6
7
IN1a
NC
NC
OUT1a
IN2a
TONE-Ha
TONE-La
IN1b
NC
NC
30
29
28
4.7µ
OUT1b 27
IN2b
TONE-Hb
TONE-Lb
26
25
24
4.7µ
4.7µ
4.7n
100n
4.7µ
100n
4.7µ
4.7µ
4.7µ
22µ
-5-
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