NJW1176
- 1 -
AUDIO PROCESSOR w ith Subwoofer Output
■
■■
■ GENERAL DESCRIPTION ■
■■
■ PACKAGE OUTLINE
The NJW1176 is a s ound pr ocessor with s ubwoofer output
includes all of functions processing audio signal for TV, such
as tone control, balance, volume, mute, and AGC functions.
Also the NJW1176 includes the LPF for subwoofer output
and bass boost function.
The original surround system reproduces natural surround
sound and clear voc a l orien tati on.
All of internal status and variables are controlled by I
2
C
BUS interface.
■
■■
■ FEATURES
●
●●
● Operating Voltage 7.5 to 13V
●
●●
● 3ch Output (Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
●
●●
● LPF Filter (Adjustable cut off frequency by external parts)
●
●●
● AGC Circuit (It reduces volume difference among input sources.)
Adjustable AGC compression level by I
2
C BUS
●
●●
● eala(NJRC Original Surround System)
●
●●
● Simulated Stereo
●
●●
● I
2
C BUS Interface
●
●●
● Bi-CMOS Technology
●
●●
● Package Outline SDIP30, SDMP30, SSOP32
■
■■
■ BLOCK DIAGRAM
NJW1176L
AGC
Bias
TONE
TONE
VOL2
LPF
eala
&
Simulated
Stereo
AGC
IN b
IN a
CVA
CVB
CVW
CTH
CTL
AUX1
AUX0
GND
V+
SCL SDA
Vref
TONE
-Ha
SUR
-
FIL
TONE
-Hb
TONE
-La
TONE
-Lb
LF1
LF2
LF3
OUTa
OUTb
OUTw
VOL2
VOL1
VOL1
I
2
CBUS
Interface
Trimmer
VOL2
TONE
-INb
TONE
INa
-OUTb
SUR
OUTa
SUR
NJW1176M
NJW1176V
NJW1176
- 2 -
■
■■
■PIN CONFIGURATION (SDIP30, SDMP30)
No. Symbol Function No Symbol Function
1 INa Ach Input 16 Vcc Power Supply Pin
2 CVW Wch DAC output terminal for LPF trimmer 17 AUX1 Auxiliary Output1
3 LF1 LPF filter1 terminal 18 AUX0 Auxiliary Output0
4 SUR OUTa Ach Output for the Other Accessories 19 CTL DAC Output for Tone Low Frequency
5 TONE INa Ach Input From the Other Accessories 20 CTH DAC Output for Tone High Frequency
6 TONE-Ha Ach Trebl e F i lter 21 VREF Reference Voltage
7 TONE-La Ach Bass Filter 22 OUTw Wch Output
8 OUTa Ach Output 23 OUTb Bch Output
9 AGC AGC Filter 24 TONE-Lb Bch Bass Filter
10 SUR-FIL eala and Simulated Stereo Filter 25 TONE-Hb Bc h Treble Filter
11 CVB DAC Output for Bch Volume & Balance 26 TONE INb Bch Input from the Other Acc essories
12 CVA DAC Output for Ac h Volume & Balance 27 SUR OUTb Bch Output for the Other Accessories
13 SDA S DA Data Input (I
2
C BUS) 28 LF3 LPF filter3 terminal
14 SCL SCL Data Input (I
2
C BUS) 29 LF2 LPF filter2terminal
15 GND GND 30 INb Bch Input
(
✳)
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
CVW
LF1
TONE-Ha
TONE-La
SUR OUTa
TONE INa
OUTa
A
GC
SUR-FIL
CVB
CV
A
SD
A
SCL
GND
INb
LF2
LF3
TONE-Hb
TONE-Lb
TONE INb
OUTb
OUTw
VREF
CTH
25
24
23
22
21
CTL
A
UX0
A
UX1
Vcc
20
19
18
17
16
SUR OUTb
NJW1176
-3-
■
■■
■PIN CONFIGURATION (SSOP32)
No. Symbol Function No Symbol Function
1 INa Ach Input 17 N.C. No Connection
2 CVW Wch DAC output terminal for LPF trimm er 18 Vcc Power Supply Pin
3 LF1 LPF filter1 terminal 19 AUX1 Auxiliary Output1
4 SUR OUTa Ach Output for the Other Accessories 20 AUX0 Auxiliary Output0
5 TONE INa Ach Input From the Other Accessories 21 CTL DAC Out put for Tone Low Frequency
6 TONE-Ha Ach Treble Filter 22 CTH DAC Output for Tone High Frequency
7 TONE-La Ach Bass Filter 23 VREF Reference Voltage
8 OUTa Ach Output 24 OUTw Wch Output
9 AGC AGC Filter 25 OUTb Bch Output
10 SUR-FIL eala and Simulated Stereo Filter 26 TONE-Lb Bch Bass Filter
11 CVB DAC Out put for Bch Volume & Balance 27 TONE-Hb Bch Trebl e F i lter
12 CVA DAC Output for Ac h Volume & Balance 28 TONE INb B ch Input from the Other Access o ries
13 SDA S DA Data Input (I
2
C BUS) 29 SUR OUTb Bch Output for the Other Accessories
14 SCL SCL Data Input (I
2
C BUS) 30 LF3 LPF filter3 terminal
15 GND GND 31 LF2 LPF filter2terminal
16 N.C. No Connection 32 INb Bch Input
(
✳)
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
32
31
30
29
28
INa
CVW
LF1
TONE-Ha
TONE-La
SUR OUTa
TONE INa
OUTa
A
GC
SUR-FIL
CVB
CV
A
SD
A
SCL
GND
INb
LF2
LF3
TONE-Hb
TONE-Lb
TONE INb
OUTb
OUTw
VREF
CTH
27
26
25
24
23
CTL
A
UX0
A
UX1
Vcc
22
21
20
19
18
SUR OUTb
16
N.C. N.C.
17
NJW1176
- 4 -
■
■■
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
15 V
(L, M type) 700
Power Dissipation P
D
(V type) 800
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
mW
Operating Temperature Range Topr -20 to +75 °C
Storage Temperature Range Tstg -40 to +125 °C
■
■■
■ ELECTRICAL CHARACTERISTICS
( Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz unless otherwise specified)
Condition Input
PARAMETER SYMBOL INa INb Output MIN. TYP. MAX. UNIT
Operating Voltage V
+
- - - 7.5 9.0 13.0 V
Supply Current I
CC
No Signal - - - - 13 25 mA
Reference Voltage V
REF
No Signal - - - 4.0 4.5 5.0 V
V
in
- OUTa
Maximum Input Voltage V
IM
VOL=-20dB,THD=1% - V
in
OUTb 2.8 3.0 - Vrms
V
in
- OUTaMaximum
Output Voltage V
OM
VOL=0dB, THD=1% - V
in
OUTb - 2.5 - 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
T rimmer Boost TR
BST
VOL=0dB
TRIM = +18dB V
in
V
in
OUTw 16.0 18.0 20.0 dB
T rimmer Cut TR
CUT
VOL=0dB
TRIM = Mute V
in
V
in
OUTw - - -70 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
A-weighted - V
in
OUTa - - -70 dB
Output Noise 1 V
NO1
VOL=0dB
A-weighted - - - -
-90
(31.6) -85
(56.2) dBV
(µVrms)
Output Noise 2 V
NO2
VOL=MUTE
A-weighted - - - -
-106
(5.0) -96
(15.8) dBV
(µVrms)
Output Noise 3 V
NO3
VOL=MUTE,TRIM=MUTE
A-weighted - - - -
-100
(10.0) -90
(30.0) dBV
(µVrms)
BW : Band W idth
NJW1176
-5-
■
■■
■
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ, 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
◆AGC
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=”1 1” 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
◆SURROUND
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
◆ AUX
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
NJW1176
- 6 -
■
■■
■ I
2
C BUS BLOCK CHARACTERISTICS (SDA,SCL)
I
2
C BUS Load Conditions: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
Standard mode Fast mode
PARAMETER SYMBOL
MIN. TYP. MAX. MIN. TYP. MAX.
UNIT
Low Level Input Voltage V
IL
0.0 - 1.5 0.0 - 1.5 V
High Level Input Voltage V
IH
2.7 - 5.0 2.7 - 5.0 V
Hysteresis of Schmitt trigger inputs V
hys
- - - 0.25 - - V
Low level output voltage (3mA at SDA pin) V
OL
0 - 0.4 0 - 0.4 V
Output fall time from V
IHmin
to V
ILmax
wit h
a bus capacitance from 10pF to 400pF t
of
- - 250
20
+0.1C
b
- 250 ns
Pulse width of spikes which must be suppressed
by the input filter t
SP
- - - 0 - 50 ns
Input current each I/O pin with an input voltage
between 0.1V
DD
and 0.9V
DDmax
I
i
-10 - 10 -10 - 10 µA
Capacitance for each I/O pin C
i
- - 10 - - 10 pF
SCL clock frequency f
SCL
- - 100 - - 400 kHz
Hold time (repeated) START condition. t
HD:STA
4.0 - - 0.6 - - µs
Low period of the SCL clock t
LOW
4.7 - - 1.3 - - µs
High period of the SCL clock t
HIGH
4.0 - - 0.6 - - µs
Set-up time for a repeated START condition t
SU:STA
4.7 - - 0.6 - - µs
Data ho ld time t
HD:DAT
0 - 3.45 0 - 0.9 µs
Data set-up time t
SU:DAT
250 - - 100 - - ns
Rise time of both SDA and SCL signals t
r
- - 1000 - - 300 ns
Fall time of both SDA and SCL signals t
f
- - 300 - - 300 ns
Set-up time for STOP condition t
SU:STO
4.0 - - 0.6 - - µs
Bus fr ee time betw een a ST OP and START conditio n t
BUF
4.7 - - 1.3 - - µs
Capacitive load for each bus line C
b
- - 400 - - 400 pF
Noise margin at the Low level V
nL
0.5 - - 0.5 - - V
Noise margin at the High level
V
nH
1 - - 1 - -
V
C
b
; total capacitance of one bus line in pF.
I
2
C BUS Load Condition: Pull up resistance 4kΩ (Connected to +5V)
Load capacitance 200pF (Connected to GND)
SD
A
SCL
t
BUF
t
HD:STA
Sr
P
t
LOW
t
R
t
HD:DAT
t
HIGH
t
F
t
SU:DAT
S
P
t
SU:STA
t
SU:STO
t
HD:STA
NJW1176
-7-
TERMINAL DESCRIPTION
No.
SDIP
SDMP SSOP
SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
1
30 1
32 INa
INb Ach input terminal
Bch input terminal
V+/2
22
8
23
24
8
25
OUTw
OUTa
OUTb
Subwoofer output
terminal
Ach output terminal
Bch output terminal
V+/2
10 10 SUR-FIL Surround filter terminal
V+/2
6
25 6
27 TONE-Ha
TONE-Hb Treble(tone control) filter
terminal
V+/2
7
24 7
26 TONE-La
TONE-Lb Bass(tone control) filter
terminal
V+/2
80k
20k
Vref
1,30 pin
V+
8, 22, 23pin
FB 100
FB 18k 6, 25pin
12k
7, 24pin
FB
12k
FB
2k (eala)
6k (sim)
10pin
NJW1176
- 8 -
TERMINAL DESCRIPTION
No.
SDIP
SDMP SSOP
SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
9 9 AGC
Capacitor connection terminal for
AGC attack and recovery t ime
setting
AGC;
OFF=0.65V
ON=1.4V
18 20 AUX0
Auxiliary 3 values voltage output
terminal
Low=0V
Mid=2.5V
High= 5.0V
17 19 AUX1
Auxiliary 2 values voltage output
terminal
(Open collector type output)
Low=0V
High=3.5V to
V+
13 13 SDA I
2
C data terminal
-
14 14 SCL I
2
C clock terminal
-
400 400
12k 9pin
18pin
FB
1k
12k
17pin
8k
4k
D1
D2
D13
D14
13pin
8k
4k
D1
D2
D13
D14
14pin
NJW1176
-9-
TERMINAL DESCRIPTION
No.
SDIP
SDMP SSOP
SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
15
16 15
17 GND
V+ Ground terminal
Suppl y voltage terminal - 0V
V+
21 23 Vref Reference voltage terminal
V+/2
19
20 21
22 CTL
CTH
DAC output for tone control
terminal
-
2
11
12
2
11
12
CVW
CVB
CVA
DAC output terminal for t rimm er
control
DAC output terminal for Bc h vol um e
control
DAC output terminal for Ach volume
control
-
29
28 31
30 LF3
LF2 LPF filter terminal
V+/2+0.7V
200k
21pin 200k
36k
19, 20pin
8k
2, 11,
12pin
28, 29pin
4k
NJW1176
- 10 -
TERMINAL DESCRIPTION
No.
SDIP
SDMP SSOP
SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
3 3 LF1 LPF filter terminal
V+/2
3pin
1.8k
NJW1176
-11-
■
■■
■ MEASUREMENT CIRCUIT
4.7μ
330nF
0.47µ
2.2n
100n
0.47µ
4.7µ
0.047µ
16
17
18
2
3
4
5
6
7
8
9
10
11
13
1
12
14
15
0.47µ
4.7µ
47k
47k
0.022µ
2.2n
100n
4.7µ
47k
4.7µ
4.7µ
4.7µ
22µ
V+
Icc
Vref
V+
Input Ach Input Bch
Vin Vin
19
20
21
22
23
24
25
26
27
28
29
30
Output Bch
Output Wch
Output Ach
AUX0
AUX1
SDA
SCL
INa
OUTa
AGC1
SUR-F IL
CVB
CVA
SCL
GND
INb
OUTb
OUTw
VREF
CTH
CTL
AUX0
AUX1
V+
TONE-Ha
TONE-La
TONE-Hb
CVW
LF1
SDA
LF2
LF3
SUR OUTb
TONE-Lb
100n
4.7µ
4.7µ
4.7µ
4.7µ
SUR OUTa
TONE INb
TONE INa
(✳1) V
AUX0
I
AUX0
Output High +1mA
Output Low -120µA
(✳2) V
AUX1
I
AUX1
Output Low -1mA
(✳3) V
OL
I
OL
Output Low -3mA
(
✳
1) (
✳
2)
(
✳
3)
V
PTIN0
V
PTIN1
V
ADRIN
NJW1176
- 12 -
■
■■
■ APPLICATION CIRCUIT 1 (SDIP30, SDMP30)
4.7μ
330nF
0.47µ
2.2n
100n
0.47µ
4.7µ
0.047µ
16
17
18
2
3
4
5
6
7
8
9
10
11
13
1
12
14
15
0.47µ
4.7µ
0.022µ
2.2n
100n
4.7µ
4.7µ
4.7µ
4.7µ
22µ
V+
V+
Input Ach Input Bch
19
20
21
22
23
24
25
26
27
28
29
30
Outpu t Bch
O u tput Wch
Output Ach
AUX0
AUX1
SDA
SCL
INa
OUTa
AGC1
SUR-F IL
CVB
CVA
SCL
GND
INb
OUTb
OUTw
VREF
CTH
CTL
AUX0
AUX1
V+
TONE-Ha
TONE-La
TONE-Hb
CVW
LF1
SDA
LF2
LF3
SUR OUTb
TONE-Lb
100n
4.7µ
4.7µ
4.7µ
4.7µ
SUR OUTa
TONE INb
TONE INa
100
220
10k
(✳4) Separate the I
2
C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No. Symbol Pin No. Symbol
3 LF1 24 TONE-Lb
6 TONE-Ha 25 TONE-Hb
7 TONE-La 28 LF3
10 SUR-FIL 29 LF2
V
AUX1
3.5V to V+
NJW1176
-13-
■
■■
■ APPLICATION CIRCUIT 2 (SDIP30, SDMP30)
4.7μ
330nF
0.47µ
2.2n
100n
0.47µ
4.7µ
0.047µ
16
17
18
2
3
4
5
6
7
8
9
10
11
13
1
12
14
15
0.47µ
4.7µ
0.022µ
2.2n
100n
4.7µ
4.7µ
4.7µ
4.7µ
22µ
V+
V+
Input Ach Input Bch
19
20
21
22
23
24
25
26
27
28
29
30
Outpu t Bch
O u tput Wch
Output Ach
AUX0
AUX1
SDA
SCL
INa
OUTa
AGC1
SUR-F IL
CVB
CVA
SCL
GND
INb
OUTb
OUTw
VREF
CTH
CTL
AUX0
AUX1
V+
TONE-Ha
TONE-La
TONE-Hb
CVW
LF1
SDA
LF2
LF3
SUR OUTb
TONE-Lb
100n
4.7µ
4.7µ
4.7µ
4.7µ
SUR OUTa
TONE INb
TONE INa
100
220
4.7µ
4.7µ
IN IN
OUT OUT
Surround Sound IC
or
Sound Enhanc ement IC
CNT
CNT
Ex.)
ealaBASS : NJM2706
BBE Mach3 : NJM2155
SRS TruBass : NJM2192A
SRS WOW : NJM2700, NJM2195, … , etc
(✳4) Separate the I
2
C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No. Symbol Pin No. Symbol
3 LF1 24 TONE-Lb
6 TONE-Ha 25 TONE-Hb
7 TONE-La 28 LF3
10 SUR-FIL 29 LF2
NJW1176
- 14 -
■
■■
■ APPLICATION CIRCUIT 3 (SSOP32)
4.7μ
330nF
0.47µ
2.2n
100n
0.47µ
4.7µ
0.047µ
18
19
20
2
3
4
5
6
7
8
9
10
11
13
1
12
14
15
0.47µ
4.7µ
0.022µ
2.2n
100n
4.7µ
4.7µ
4.7µ
4.7µ
22µ
V+
V+
Input Ach Input Bch
21
22
23
24
25
26
27
28
29
30
31
32
Outpu t Bch
O u tput Wch
Output Ach
AUX0
AUX1
SDA
SCL
INa
OUTa
AGC1
SUR-F IL
CVB
CVA
SCL
GND
INb
OUTb
OUTw
VREF
CTH
CTL
AUX0
AUX1
V+
TONE-Ha
TONE-La
TONE-Hb
CVW
LF1
SDA
LF2
LF3
SUR OUTb
TONE-Lb
100n
4.7µ
4.7µ
4.7µ
4.7µ
SUR OUTa
TONE INb
TONE INa
100
220
10k
17
16
N.C.
N.C.
V
AUX1
3.5V to V+
(✳4) Separate the I
2
C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No. Symbol Pin No. Symbol
3 LF1 26 TONE-Lb
6 TONE-Ha 27 TONE-Hb
7 TONE-La 30 LF3
10 SUR-FIL 31 LF2
NJW1176
-15-
■
■■
■ APPLICATION CIRCUIT 4 (SSOP32)
4.7μ
330nF
0.47µ
2.2n
100n
0.47µ
4.7µ
0.047µ
18
19
20
2
3
4
5
6
7
8
9
10
11
13
1
12
14
15
0.47µ
4.7µ
0.022µ
2.2n
100n
4.7µ
4.7µ
4.7µ
4.7µ
22µ
V+
V+
Input Ach Input Bch
21
22
23
24
25
26
27
28
29
30
31
32
Outpu t Bch
O u tput Wch
Output Ach
AUX0
AUX1
SDA
SCL
INa
OUTa
AGC1
SUR-F IL
CVB
CVA
SCL
GND
INb
OUTb
OUTw
VREF
CTH
CTL
AUX0
AUX1
V+
TONE-Ha
TONE-La
TONE-Hb
CVW
LF1
SDA
LF2
LF3
SUR OUTb
TONE-Lb
100n
4.7µ
4.7µ
4.7µ
4.7µ
SUR OUTa
TONE INb
TONE INa
100
220
4.7µ
4.7µ
17
16
N.C.
N.C.
IN IN
OUT OUT
Surround Sound IC
or
Sound Enhanc ement IC
CNT
CNT
Ex.)
ealaBASS : NJM2706
BBE Mach3 : NJM2155
SRS TruBass : NJM2192A
SRS WOW : NJM2700, NJM2195, … , etc
(✳4) Separate the I
2
C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No. Symbol Pin No. Symbol
3 LF1 26 TONE-Lb
6 TONE-Ha 27 TONE-Hb
7 TONE-La 30 LF3
10 SUR-FIL 31 LF2
NJW1176
- 16 -
■
■■
■ DEFINITION OF I
2
C REGISTER
♦
♦♦
♦I
2
C BUS FORMAT
MSB LSB MSB LSB MSB LSB
S Slave Address A Select Address A Data A P
1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦
♦♦
♦SLAVE ADDRE SS
R/W = 0 : Receive Only.
R/W = 1: No Output Data
Slave Address Hex
1 0 0 0 0 0 1 0 82(h)
♦
♦♦
♦CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, Bass Boost Select, AGC, Surround, Tone Control, AUX).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→05H→00H
<Write Mode > BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
01H CHS BAL BBSW
02H BCB BASS ✴
03H BCT TREB ✴
04H TRIM ✴
05H SUR AUX1 AUX0 AGCL AGC
✴ : Don’t Care
♦
♦♦
♦CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H 0 0 0 0 0 0 0 0
01H 0 0 0 0 0 0 0 0
02H 0 0 0 0 0 0 0 0
03H 0 0 0 0 0 0 0 0
04H 0 0 0 0 0 0 0 0
05H 0 0 0 0 0 0 0 0
NJW1176
-17-
INSTRUCTION CODE
a) MASTER VOLUME SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
•VOL Attenuation level : 0 to –80dB(0.33dB/step) , MUTE
The attenuator is consisted of both the VOL1(0.165dB/step)and VOL2(0.165dB/step) and is enable to adjust 0.33dB/step.
The attenuation for both the VOL1and VOL2 are always synchronized to have the same attenuation levels for each other,
and are not controllable independently for each other.
ex) VOL(-30dB) = VOL1(-15dB) + VOL2(-15dB)
b) BALANCE AND BASS BOOST FUNCTION SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
01H CHS BAL BBSW
•CHS : Channel select for balance control
“0” : Ach “Bch is attenuated”
“1” : Bch “Ach is attenuated”
•BAL : Balance control for both Ach and Bch
Balance Level : 0 to –60dB (1dB/Step) , MUTE
•BBSW : Bass Boost ON/OFF Switch
“0” = Bass Boost OFF
“1” = Bass Boost ON
c) TONE CONTROL BASS SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
02H BCB BASS
Don’t Care
•BCB : Boost cut select for Bass contr ol
“0” : Cut
“1” : Boost
•BASS : BASS Level Setting
Cut Level : -15 to 0dB(0.5dB/Step)
Boost Level : 0 to +15dB(0.5dB/Step)
d) TONE CONTROL TREBLE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
03H BCT TREB
Don’t Care
•BCT : Boost cut select for Treble control
“0” : Cut
“1” : Boost
•TREB : TREBLE Level Setting
Cut Level : -15 to 0dB(0.5dB/Step)
Boost Level : 0 to +15dB(0.5dB/Step)
e) TRIMMER LEVEL SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
04H TRIM
Don’t Care
•TRIM : Trimmer Level
Trimmer Level : +18 to –44dB (0.5dB/Step) , MUTE
NJW1176
- 18 -
d) SURROUND, AUXILIARY, AGC LEVEL SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
05H SUR AUX1 AUX0
AGCL
AGC
<SUR : Surround Level Setting>
Surround Setting D7 D6 Remarks
Surround Off 0 0 Surround Off
Simulated Stereo 0 1 Simulated Stereo
Surround Effect1 1 0 Surround Effect Low(8.3dB typ.)
Surround Effect2 1 1 Surround Effect High(12.7dB typ.)
<AUX1 : AUX1 Terminal Setting>
Auxiliary Setting D5
Low (0.0V) 0
High (5.0V) 1
<AUX0 : AUX0 Terminal Setting>
Auxiliary Setting D4 D3
Low (0.0V) - 0
Mid (2.5V) 0 1
High (5.0V) 1 1
<AGCL : AGC Level Setting>
AGC Level Setting D2 D1
100mVrms 0 0
200mVrms 0 1
300mVrms 1 0
400mVrms 1 1
<AGC : AGC Setting>
AGC Setting D0
OFF 0
ON 1
NJW1176
-19-
■
■■
■Master Volume (Select Address : 00H)
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
0 FF 1 1 1 1 1 1 1 1
-1 FC 1 1 1 1 1 1 0 0
-2 F9 1 1 1 1 1 0 0 1
-3 F6 1 1 1 1 0 1 1 0
-4 F3 1 1 1 1 0 0 1 1
-5 F0 1 1 1 1 0 0 0 0
-6 ED 1 1 1 0 1 1 0 1
-7 EA 1 1 1 0 1 0 1 0
-8 E7 1 1 1 0 0 1 1 1
-9 E4 1 1 1 0 0 1 0 0
-10 E1 1 1 1 0 0 0 0 1
-11 DE 1 1 0 1 1 1 1 0
-12 DB 1 1 0 1 1 0 1 1
-13 D8 1 1 0 1 1 0 0 0
-14 D5 1 1 0 1 0 1 0 1
-15 D2 1 1 0 1 0 0 1 0
-16 CF 1 1 0 0 1 1 1 1
-17 CC 1 1 0 0 1 1 0 0
-18 C9 1 1 0 0 1 0 0 1
-19 C6 1 1 0 0 0 1 1 0
-20 C3 1 1 0 0 0 0 1 1
-21 C0 1 1 0 0 0 0 0 0
-22 BD 1 0 1 1 1 1 0 1
-23 BA 1 0 1 1 1 0 1 0
-24 B7 1 0 1 1 0 1 1 1
-25 B4 1 0 1 1 0 1 0 0
-26 B1 1 0 1 1 0 0 0 1
-27 AE 1 0 1 0 1 1 1 0
-28 AB 1 0 1 0 1 0 1 1
-29 A8 1 0 1 0 1 0 0 0
-30 A5 1 0 1 0 0 1 0 1
-31 A2 1 0 1 0 0 0 1 0
-32 9F 1 0 0 1 1 1 1 1
-33 9C 1 0 0 1 1 1 0 0
-34 99 1 0 0 1 1 0 0 1
-35 96 1 0 0 1 0 1 1 0
-36 93 1 0 0 1 0 0 1 1
-37 90 1 0 0 1 0 0 0 0
-38 8D 1 0 0 0 1 1 0 1
-39 8A 1 0 0 0 1 0 1 0
-40 87 1 0 0 0 0 1 1 1
-41 84 1 0 0 0 0 1 0 0
-42 81 1 0 0 0 0 0 0 1
NJW1176
- 20 -
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
-43 7E 0 1 1 1 1 1 1 0
-44 7B 0 1 1 1 1 0 1 1
-45 78 0 1 1 1 1 0 0 0
-46 75 0 1 1 1 0 1 0 1
-47 72 0 1 1 1 0 0 1 0
-48 6F 0 1 1 0 1 1 1 1
-49 6C 0 1 1 0 1 1 0 0
-50 69 0 1 1 0 1 0 0 1
-51 66 0 1 1 0 0 1 1 0
-52 63 0 1 1 0 0 0 1 1
-53 60 0 1 1 0 0 0 0 0
-54 5D 0 1 0 1 1 1 0 1
-55 5A 0 1 0 1 1 0 1 0
-56 57 0 1 0 1 0 1 1 1
-57 54 0 1 0 1 0 1 0 0
-58 51 0 1 0 1 0 0 0 1
-59 4E 0 1 0 0 1 1 1 0
-60 4B 0 1 0 0 1 0 1 1
-61 48 0 1 0 0 1 0 0 0
-62 45 0 1 0 0 0 1 0 1
-63 42 0 1 0 0 0 0 1 0
-64 3F 0 0 1 1 1 1 1 1
-65 3C 0 0 1 1 1 1 0 0
-66 39 0 0 1 1 1 0 0 1
-67 36 0 0 1 1 0 1 1 0
-68 33 0 0 1 1 0 0 1 1
-69 30 0 0 1 1 0 0 0 0
-70 2D 0 0 1 0 1 1 0 1
-71 2A 0 0 1 0 1 0 1 0
-72 27 0 0 1 0 0 1 1 1
-73 24 0 0 1 0 0 1 0 0
-74 21 0 0 1 0 0 0 0 1
-75 1E 0 0 0 1 1 1 1 0
-76 1B 0 0 0 1 1 0 1 1
-77 18 0 0 0 1 1 0 0 0
-78 15 0 0 0 1 0 1 0 1
-79 12 0 0 0 1 0 0 1 0
-80 0F 0 0 0 0 1 1 1 1
MUTE✴ 00 0 0 0 0 0 0 0 0
✴ : Default Value
NJW1176
-21-
■
■■
■Balance, Bass Boost Setting (Select Address : 01H)
Channel Setting (CHS) D7
Decrease Bch Gain 0
Decrease A ch Gain 1
BAL
Gain(dB) D6 D5 D4 D3 D2 D1
0✴ 0 0 0 0 0 0
-1 0
0 0 0 0 1
-2 0
0 0 0 1 0
-3 0
0 0 0 1 1
-4 0
0 0 1 0 0
-5 0
0 0 1 0 1
-6 0
0 0 1 1 0
-7 0
0 0 1 1 1
-8 0
0 1 0 0 0
-9 0
0 1 0 0 1
-10 0
0 1 0 1 0
-11 0
0 1 0 1 1
-12 0
0 1 1 0 0
-13 0
0 1 1 0 1
-14 0
0 1 1 1 0
-15 0
0 1 1 1 1
-16 0
1 0 0 0 0
-17 0
1 0 0 0 1
-18 0
1 0 0 1 0
-19 0
1 0 0 1 1
-20 0
1 0 1 0 0
-21 0
1 0 1 0 1
-22 0
1 0 1 1 0
-23 0
1 0 1 1 1
-24 0
1 1 0 0 0
-25 0
1 1 0 0 1
-26 0
1 1 0 1 0
-27 0
1 1 0 1 1
-28 0
1 1 1 0 0
-29 0
1 1 1 0 1
-30 0
1 1 1 1 0
✴ : Default Value
NJW1176
- 22 -
BAL
Gain(dB) D6 D5 D4 D3 D2 D1
-31 0
1 1 1 1 1
-32 1 0 0 0 0 0
-33 1
0 0 0 0 1
-34 1
0 0 0 1 0
-35 1
0 0 0 1 1
-36 1
0 0 1 0 0
-37 1
0 0 1 0 1
-38 1
0 0 1 1 0
-39 1
0 0 1 1 1
-40 1
0 1 0 0 0
-41 1
0 1 0 0 1
-42 1
0 1 0 1 0
-43 1
0 1 0 1 1
-44 1
0 1 1 0 0
-45 1
0 1 1 0 1
-46 1
0 1 1 1 0
-47 1
0 1 1 1 1
-48 1
1 0 0 0 0
-49 1
1 0 0 0 1
-50 1
1 0 0 1 0
-51 1
1 0 0 1 1
-52 1
1 0 1 0 0
-53 1
1 0 1 0 1
-54 1
1 0 1 1 0
-55 1
1 0 1 1 1
-56 1
1 1 0 0 0
-57 1
1 1 0 0 1
-58 1
1 1 0 1 0
-59 1
1 1 0 1 1
-60 1
1 1 1 0 0
MUTE 1
1 1 1 1 1
Bass Boost Setting (BBSW) D0
Bass Boost Off✴ 0
Bass Boost On 1
✴ : Default Value
NJW1176
-23-
■
■■
■Tone Control(Bass Setting) (Select Address : 02H)
BCB Bass
Cut or Boost D7
Cut 0
Boost 1
BASS
Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 D2
-15.0 15.0 1
1
1
1
0
-14.5 14.5 1
1
1
0
1
-14.0 14.0 1
1
1
0 0
-13.5 13.5 1
1
0
1
1
-13.0 13.0 1
1
0
1
0
-12.5 12.5 1
1
0
0
1
-12.0 12.0 1
1
0
0 0
-11.5 11.5 1
0
1
1
1
-11.0 11.0 1
0
1
1
0
-10.5 10.5 1
0
1
0
1
-10.0 10.0 1
0
1
0 0
-9.5 9.5 1
0
0
1
1
-9.0 9.0 1
0
0
1
0
-8.5 8.5 1
0
0
0
1
-8.0 8.0 1
0
0
0 0
-7.5 7.5 0
1
1
1
1
-7.0 7.0 0
1
1
1
0
-6.5 6.5 0
1
1
0
1
-6.0 6.0 0
1
1
0 0
-5.5 5.5 0
1
0
1
1
-5.0 5.0 0
1
0
1
0
-4.5 4.5 0
1
0
0
1
-4.0 4.0 0
1
0
0 0
-3.5 3.5 0
0
1
1
1
-3.0 3.0 0
0
1
1
0
-2.5 2.5 0
0
1
0
1
-2.0 2.0 0
0
1
0 0
-1.5 1.5 0
0
0
1
1
-1.0 1.0 0
0
0
1
0
-0.5 0.5 0
0
0
0
1
0.0✴ 0.0✴ 0 0 0 0 0
✴ : Default value
NJW1176
- 24 -
■
■■
■Tone Control(Treble Setting) (Select Address : 03H)
BCT Treble
Cut or Boost D7
Cut 0
Boost 1
TREB
Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 D2
-15.0 15.0 1
1
1
1
0
-14.5 14.5 1
1
1
0
1
-14.0 14.0 1
1
1
0 0
-13.5 13.5 1
1
0
1
1
-13.0 13.0 1
1
0
1
0
-12.5 12.5 1
1
0
0
1
-12.0 12.0 1
1
0
0 0
-11.5 11.5 1
0
1
1
1
-11.0 11.0 1
0
1
1
0
-10.5 10.5 1
0
1
0
1
-10.0 10.0 1
0
1
0 0
-9.5 9.5 1
0
0
1
1
-9.0 9.0 1
0
0
1
0
-8.5 8.5 1
0
0
0
1
-8.0 8.0 1
0
0
0 0
-7.5 7.5 0
1
1
1
1
-7.0 7.0 0
1
1
1
0
-6.5 6.5 0
1
1
0
1
-6.0 6.0 0
1
1
0 0
-5.5 5.5 0
1
0
1
1
-5.0 5.0 0
1
0
1
0
-4.5 4.5 0
1
0
0
1
-4.0 4.0 0
1
0
0 0
-3.5 3.5 0
0
1
1
1
-3.0 3.0 0
0
1
1
0
-2.5 2.5 0
0
1
0
1
-2.0 2.0 0
0
1
0 0
-1.5 1.5 0
0
0
1
1
-1.0 1.0 0
0
0
1
0
-0.5 0.5 0
0
0
0
1
0.0✴ 0.0✴ 0 0 0 0 0
✴ : Default value
NJW1176
-25-
■
■■
■Trimmer Setting (Select Address: 04H)
TRIM
Gain(dB) D7 D6 D5 D4 D3 D2 D1
+18.0 1 1 1 1 1 1 1
+17.5 1 1 1 1 1 1 0
+17.0 1 1 1 1 1 0 1
+16.5 1 1 1 1 1 0 0
+16.0 1 1 1 1 0 1 1
+15.5 1 1 1 1 0 1 0
+15.0 1 1 1 1 0 0 1
+14.5 1 1 1 1 0 0 0
+14.0 1 1 1 0 1 1 1
+13.5 1 1 1 0 1 1 0
+13.0 1 1 1 0 1 0 1
+12.5 1 1 1 0 1 0 0
+12.0 1 1 1 0 0 1 1
+11.5 1 1 1 0 0 1 0
+11.0 1 1 1 0 0 0 1
+10.5 1 1 1 0 0 0 0
+10.0 1 1 0 1 1 1 1
+9.5 1 1 0 1 1 1 0
+9.0 1 1 0 1 1 0 1
+8.5 1 1 0 1 1 0 0
+8.0 1 1 0 1 0 1 1
+7.5 1 1 0 1 0 1 0
+7.0 1 1 0 1 0 0 1
+6.5 1 1 0 1 0 0 0
+6.0 1 1 0 0 1 1 1
+5.5 1 1 0 0 1 1 0
+5.0 1 1 0 0 1 0 1
+4.5 1 1 0 0 1 0 0
+4.0 1 1 0 0 0 1 1
+3.5 1 1 0 0 0 1 0
+3.0 1 1 0 0 0 0 1
+2.5 1 1 0 0 0 0 0
+2.0 1 0 1 1 1 1 1
+1.5 1 0 1 1 1 1 0
+1.0 1 0 1 1 1 0 1
+0.5 1 0 1 1 1 0 0
0.0 1 0 1 1 0 1 1
-0.5 1 0 1 1 0 1 0
-1.0 1 0 1 1 0 0 1
-1.5 1 0 1 1 0 0 0
-2.0 1 0 1 0 1 1 1
-2.5 1 0 1 0 1 1 0
-3.0 1 0 1 0 1 0 1
-3.5 1 0 1 0 1 0 0
-4.0 1 0 1 0 0 1 1
-4.5 1 0 1 0 0 1 0
-5.0 1 0 1 0 0 0 1
-5.5 1 0 1 0 0 0 0
-6.0 1 0 0 1 1 1 1
NJW1176
- 26 -
TRIM
Gain(dB) D7 D6 D5 D4 D3 D2 D1
-6.5 1 0 0 1 1 1 0
-7.0 1 0 0 1 1 0 1
-7.5 1 0 0 1 1 0 0
-8.0 1 0 0 1 0 1 1
-8.5 1 0 0 1 0 1 0
-9.0 1 0 0 1 0 0 1
-9.5 1 0 0 1 0 0 0
-10.0 1 0 0 0 1 1 1
-10.5 1 0 0 0 1 1 0
-11.0 1 0 0 0 1 0 1
-11.5 1 0 0 0 1 0 0
-12.0 1 0 0 0 0 1 1
-12.5 1 0 0 0 0 1 0
-13.0 1 0 0 0 0 0 1
-13.5 1 0 0 0 0 0 0
-14.0 0 1 1 1 1 1 1
-14.5 0 1 1 1 1 1 0
-15.0 0 1 1 1 1 0 1
-15.5 0 1 1 1 1 0 0
-16.0 0 1 1 1 0 1 1
-16.5 0 1 1 1 0 1 0
-17.0 0 1 1 1 0 0 1
-17.5 0 1 1 1 0 0 0
-18.0 0 1 1 0 1 1 1
-18.5 0 1 1 0 1 1 0
-19.0 0 1 1 0 1 0 1
-19.5 0 1 1 0 1 0 0
-20.0 0 1 1 0 0 1 1
-20.5 0 1 1 0 0 1 0
-21.0 0 1 1 0 0 0 1
-21.5 0 1 1 0 0 0 0
-22.0 0 1 0 1 1 1 1
-22.5 0 1 0 1 1 1 0
-23.0 0 1 0 1 1 0 1
-23.5 0 1 0 1 1 0 0
-24.0 0 1 0 1 0 1 1
-24.5 0 1 0 1 0 1 0
-25.0 0 1 0 1 0 0 1
-25.5 0 1 0 1 0 0 0
-26.0 0 1 0 0 1 1 1
-26.5 0 1 0 0 1 1 0
-27.0 0 1 0 0 1 0 1
-27.5 0 1 0 0 1 0 0
-28.0 0 1 0 0 0 1 1
-28.5 0 1 0 0 0 1 0
-29.0 0 1 0 0 0 0 1
-29.5 0 1 0 0 0 0 0
-30.0 0 0 1 1 1 1 1
-30.5 0 0 1 1 1 1 0
-31.0 0 0 1 1 1 0 1
NJW1176
-27-
TRIM
Gain（ｄ
（ｄ（ｄ
（ｄB）
））
） D7 D6 D5 D4 D3 D2 D1
-31.5 0 0 1 1 1 0 0
-32.0 0 0 1 1 0 1 1
-32.5 0 0 1 1 0 1 0
-33.0 0 0 1 1 0 0 1
-33.5 0 0 1 1 0 0 0
-34.0 0 0 1 0 1 1 1
-34.5 0 0 1 0 1 1 0
-35.0 0 0 1 0 1 0 1
-35.5 0 0 1 0 1 0 0
-36.0 0 0 1 0 0 1 1
-36.5 0 0 1 0 0 1 0
-37.0 0 0 1 0 0 0 1
-37.5 0 0 1 0 0 0 0
-38.0 0 0 0 1 1 1 1
-38.5 0 0 0 1 1 1 0
-39.0 0 0 0 1 1 0 1
-39.5 0 0 0 1 1 0 0
-40.0 0 0 0 1 0 1 1
-40.5 0 0 0 1 0 1 0
-41.0 0 0 0 1 0 0 1
-41.5 0 0 0 1 0 0 0
-42.0 0 0 0 0 1 1 1
-42.5 0 0 0 0 1 1 0
-43.0 0 0 0 0 1 0 1
-43.5 0 0 0 0 1 0 0
-44.0 0 0 0 0 0 1 1
MUTE✴ 0 0 0 0 0 0 0
✴ : Default value
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
