NJW1136
(1/24) G
AUDIO PROCESSOR with Subwoofer Output
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I GENERAL DESCRIPTION I
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I PACKAGE OUTLINE
The NJW1136 is a sound processor with subwoofer
output includes all of functions processing audio signal for
TV, such as tone control, balance, volume, mute, and AGC
functions.
Also the NJW1136 includes the LPF for subwoofer output
and bass boost function.
The original surround system reproduces natural surround
sound and clear vocal orientation.
All of internal status and variables are controlled by I
2
C
BUS interface.
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I FEATURES
G
G
G
G Operating Voltage 8 to 13V
G
G
G
G 3ch Output(Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
G
G
G
G LPF Filter (Adjustable cut off frequency by external parts)
G
G
G
G AGC Circuit (It reduces volume difference among input sources.)
Adjustable AGC boost level by external parts and AGC compression level by I
2
C BUS
G
G
G
G eala(NJRC Original Surround System)
G
G
G
G Simulated Stereo
G
G
G
G I
2
C BUS Interface
G
G
G
G Bi-CMOS Technology
G
G
G
G Package Outline SOP32, DIP32
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I BLOCK DIAGRAM
AGC
Bias
TONE
VOL2
TONE
VOL2
LPF
eala
&
Simulated
Stereo
AGC1
AGC2
IN b
IN a
CVA
CVB
CVW
CTH
CTL
CSR
PORT1
PORT0
AUX1
AUX0
GND
V+
SCL SDA ADR
Vref
TONE
-Ha
SS-FIL
SR-FIL
TONE
-Hb
TONE
-La
TONE
-Lb
LF1 LF2 LF3
OUTa
OUTb
OUTw
VOL2
VOL1
VOL1
I
2
CBUS
Interface
Trimmer
P R E L I M I N A R Y
NJW1136L
NJW1136GL1
NJW1136D
NJW1136
(2/24)
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IPIN CONFIGURATION
No. Symbol
Function
No. Symbol
Function
1
INa
Ach input terminal
17
V+
Supply voltage terminal
2
SR-FIL
Surround filter terminal
18
Vref
Reference voltage terminal
3
SS-FIL
Simulated stereo filter terminal
19
CSR
DAC output terminal for surround control
4
TONE-Ha
Ach tone control (treble) filter terminal
20
CTL
DAC output terminal for tone control (bass)
5
TONE-La
Ach tone control (bass) filter terminal
21
CTH
DAC output terminal for tone control (treble)
6
OUTw
Subwoofer output terminal
22
CVW
Bch DAC output terminal for LPF trimmer
7
OUTa
Ach output terminal
23
CVB
Bch DAC output terminal for volume and balance
8
AGC1
AGC attack and recovery time setting terminal
24
CVA
Ach DAC output terminal for volume and balance
9 AUX0
()
Auxiliary 3 values voltage output terminal
(0.0V, 2.5V, 5V)
25
AGC2
AGC boost level setting terminal
10 AUX1
Auxiliary 2 values voltage output terminal
(0.0V, V+)
26
OUTb Bch
output
terminal
11
PORT0
Logic input terminal
27
TONE-Lb
Bch tone control (bass) filter terminal
12
PORT1
Logic input terminal
28
TONE-Hb
Bch tone control (treble) filter terminal
13
ADR
Slave address setting terminal
29
LF3
LPF filter3 terminal
14 SDA
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2
C data terminal
30
LF2
LPF filter2 terminal
15 SCL
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2
C cock terminal
31
LF1
LPF filter1 terminal
16
GND
Ground terminal
32
INb
Bch input terminal
()
The AUX0 terminal should be connected via the protection resistance to 5V device.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
30
29
28
27
26
INa
SR-FIL
SS-FIL
TONE-La
OUTa
TONE-Ha
OUTW
AGC1
AUX0
PORT0
PORT1
SDA
SCL
GND
INb
LF1
LF2
TONE-Hb
TONE-Lb
OUTb
AGC2
CVA
CTH
25
24
23
22
21
CTL
CSR
V+
20
19
18
17
31
LF3
AUX1
16
32
ADR
CVB
Vref
CVW
NJW1136
(3/24)
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I ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER SYMBOL
RATING
UNIT
Supply Voltage
V
+
15
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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I ELECTRICAL CHARACTERISTICS
( Ta=25C, V+=9V, Rg=600
, R
L
=47k
, Vin=100mVrms/1kHz unless otherwise specified)
Condition
Input
PARAMETER SYMBOL
INa INb
Output
MIN. TYP.
MAX.
UNIT
Operating Voltage
V
+
- -
- 8.0 9.0
13.0
V
Supply Current1
I
CC1
No
Signal
- - -
Supply Current2
I
CC2
No Signal, V+=12V
-
-
-
- 13 25 mA
Reference Voltage
V
REF
No
Signal
- -
- 4.0 4.5 5.0 V
V
in
- OUTa
Maximum Input Voltage1
V
IM1
VOL=-20dB,THD=1%
- V
in
OUTb
2.8 3.0 - Vrms
V
in
- OUTa
Maximum Input Voltage2
V
IM2
VOL=-20dB,THD=1%
V+=12V
- V
in
OUTb
- 4.0 - Vrms
V
in
- OUTa
Maximum
Output Voltage1
V
OM1
VOL=0dB,
THD=1%
- V
in
OUTb
- 2.5 - Vrms
V
in
- OUTa
Maximum
Output Voltage2
V
OM2
VOL=0dB, THD=1%
V+=12V
- V
in
OUTb
- 3.5 - Vrms
Channel Balance
G
CB
VOL=0dB
- - - -1.5 0.0 1.5 dB
Balance Boost A
BA
BST
CHS="0",BAL="111111" V
in
V
in
OUTa
-2.0 0.0 2.0 dB
Balance Cut A
BA
CUT
CHS="1", BAL="111111"
Vin = 1Vrms
V
in
V
in
OUTa
-
- -70 dB
Balance Boost B
BB
BST
CHS="1",BAL="111111" V
in
V
in
OUTb -2.0 0.0 2.0 dB
Balance Cut B
BB
CUT
CHS="0", BAL="111111"
Vin = 1Vrms
V
in
V
in
OUTb -
- -70 dB
Trimmer Boost
TR
BST
VOL=0dB
TRIM = +18dB
V
in
V
in
OUTw
16.0 18.0 20.0
dB
Trimmer Cut
TR
CUT
VOL=0dB
TRIM = -44dB
V
in
V
in
OUTw
-49.0
-44.0 -39.0
dB
V
in
- OUTa
Total Harmonic Distortion
THD
Vo=0.5Vrms,
BW=400Hz to 30kHz
- V
in
OUTb
- - 0.5 %
V
in
- OUTa
Maximum Gain
G
VMAX
VOL=0dB
- V
in
OUTb
-2.0 0.0 2.0 dB
V
in
- OUTa
Minimum Gain
G
VMIN
VOL=MUTE
Vin=1Vrms
- V
in
OUTb
- - -70 dB
V
in
- OUTb
Channel Separation
CS
Vin=1Vrms
BW=400Hz to 30kHz
- V
in
OUTa
- - -70 dB
Output Noise 1
V
NO1
VOL=0dB
BW=400Hz to 30kHz
- - - -
-90
(31.6)
-85
(56.2)
dBV
(
Vrms)
Output Noise 2
V
NO2
VOL=MUTE
BW=400Hz to 30kHz
- - - -
-106
(5.0)
-96
(15.8)
dBV
(
Vrms)
BW : Band Width
NJW1136
(4/24)
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ELECTRICAL CHARACTERISTICS
(Ta=25C, V+=9V, Rg=600
, R
L
=47k
, Vin=100mVrms/1kHz unless otherwise specified)
Condition
Input
PARAMETER SYMBOL
INa INb
Output
MIN. TYP. MAX. UNIT
TONE
V
in
- OUTa
High Frequency Boost
HF
BST
BCT="1"
TREB=+15dB, f=10kHz
- V
in
OUTb
12.5 15.0 17.5 dB
V
in
- OUTa
High Frequency Flat
HF
FLT
TREB=0,
f=10kHz
- V
in
OUTb
-2.0 0.0 2.0 dB
V
in
- OUTa
High Frequency Cut
HF
CUT
BCT="0"
TREB=-15dB, f=10kHz
- V
in
OUTb
-17.5 -15.0
-12.5 dB
V
in
- OUTa
Low Frequency Boost
LF
BST
BCB="1"
BASS=+15dB, f=100Hz
- V
in
OUTb
12.5 15.0 17.5 dB
V
in
- OUTa
Low Frequency Flat
LF
FLT
BASS=0,
f=100Hz
- V
in
OUTb
-2.0 0.0 2.0 dB
V
in
- OUTa
Low Frequency Cut
LF
CUT
BCB="0"
BASS=-15dB, f=100Hz
- V
in
OUTb
-17.5 -15.0
-12.5 dB
NAGC
V
in
OUTa
AGC Boost
AGC
BST
Vin=50mVrms, f=1kHz
AGC="1"
V
in
V
in
OUTb
1.5 3.5 5.5 dB
V
in
V
in
OUTa
AGC Flat1
AGC
FLT1
Vin=100mVrms,f=1kHz
AGC="1", AGCL="00"
V
in
V
in
OUTb
-2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat2
AGC
FLT2
Vin=200mVrms, f=1kHz
AGC="1", AGCL="01"
V
in
V
in
OUTb
-2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat3
AGC
FLT3
Vin=300mVrms, f=1kHz
AGC="1", AGCL="10"
V
in
V
in
OUTb
-2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat4
AGC
FLT4
Vin=400mVrms, f=1kHz
AGC="1", AGCL="11"
V
in
V
in
OUTb
-2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Cut
AGC
CUT
Vin=2Vrms, f=1kHz
AGC="1"
V
in
V
in
OUTb
-14 -10 -6.0
dB
NSURROUND
V
in
- OUTa
Surround Gain1
SR
GAIN1
f=100Hz
Surround Effect1
- V
in
OUTb
6.3 8.3 10.3 dB
V
in
- OUTb
Surround Gain2
SR
GAIN2
f=100Hz
Surround Effect1
- V
in
OUTa
2.1 4.1 6.1 dB
V
in
- OUTa
Surround Gain3
SR
GAIN3
f=100 Hz
Surround Effect2
- V
in
OUTb
10.7 12.7 14.7 dB
V
in
- OUTb
Surround Gain4
SR
GAIN 4
f=100Hz
Surround Effect2
- V
in
OUTa
8.4 10.4 12.4 dB
Simulated Stereo1
SR
SIM1
f=1kHz, Simulated Stereo
V
in
V
in
OUTa 1.0 3.0 5.0 dB
Simulated Stereo2
SR
SIM2
f=1kHz, Simulated Stereo
V
in
V
in
OUTb 1.0 3.0 5.0 dB
NPORT, AUX
Input : High
3.5
-
-
PORT0,1 Input Voltage
V
PTIN
Input : Low
- - -
- -
1.0
V
Logic Output : High
4.5
-
5.5
Logic Output : Mid
2.0
-
3.0
AUX0 Output Voltage
V
AUX0
Logic Output : Low
- - -
0 -
0.5
V
Logic Output : High
3.5
-
V+
AUX1 Output Voltage
V
AUX1
Logic Output : Low
- - -
0 -
0.5
V
Input : High
3.5
-
-
ADR Input Voltage
V
ADR
Input : Low
- - -
- -
1.0
V
NJW1136
(5/24)
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2
C BUS BLOCK CHARACTERISTICS (SDA,SCL)
PARAMETER SYMBOL
MIN.
TYP.
MAX.
UNIT
High Level Input Voltage
V
IH
3.0 - 5.0 V
Low Level Input Voltage
V
IL
0 - 1.5 V
High Level Input Current
I
IH
- - 10
A
Low Level Input Current
I
IL
- - 10
A
Low Level Output Voltage (3mA at SDA pin)
V
OL
0 - 0.4 V
Maximum Output Current
I
OL
-3.0 -
- mA
Maximum Clock Frequency
f
SCL
0 - 100
kHz
Data Change Minimum Waiting Time
t
BUF
4.7 -
-
s
Data Transfer Start Minimum Waiting Time
t
HD:STA
4.0
-
-
s
Low Level Clock Pulse Width
t
LOW
4.7 -
-
s
High Level Clock Pulse Width
T
HIGH
4.0 -
-
s
Minimum Start Preparation Waiting Time
t
SU:STA
4.7
-
-
s
Minimum Data Hold Time
t
HD:DAT
5.0
-
-
s
Minimum Data Preparation Time
t
SU:DAT
250
-
-
ns
Rise Time
t
R
- - 1.0
s
Fall Time
t
F
- - 300
ns
Minimum Stop Preparation Waiting Time
t
SU:STO
4.7
-
-
s
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2
C BUS Load Condition:
Pull up resistance 4k
(Connected to +5V)
Load capacitance 200pF (Connected to GND)
SDA
SCL
t
BU
t
HD:ST
Sr
P
t
LOW
t
R
t
HD:DA
t
HIGH
t
F
t
SU:DA
S
P
t
SU:ST
t
SU:ST
t
HD:ST
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