NJW1142
-1
–
AUDIO PROCESSOR
■
■■
■ GENERAL DESCRIPTION ■
■■
■ PACKAGE OUTLINE
The NJW1142 is a sound processor includes all of the
functions required to process the audio signal for TV, such
as tone control, balance, volume, mute, and AGC functions.
Also the NJW1142 per form s NJRC S urround "eala " which
is regenerated 3D surround sound with only two speakers.
All of the internal status and variables are controlled by I
2
C
BUS interface.
■
■■
■ FEATURES
● Operating Voltage 8 to 10V
● Internal 4 Input Audio Selectors and Monitor Output
● Low Noise VCA
● NJRC Surround "eala"
● Simulated Stereo
● Variable AGC Compression Level via I
2
C (4-levels)
● Bi-CMOS Technology
● Package Outline SDIP30, SDMP30
■
■■
■BLOCK DIAGRAM
Bias
AGC
CVA
CVB
CTH
CTL
GND
Vcc
Vref
TONE
-Ha
TONE
-Hb
TONE
-La
TONE
-Lb
OUTb
SDA
SCL
I 2C BUS
Interface
SEL
SEL
TONE
VOL2
AGC
TONE
VOL2
VOL1
VOL1
IN1a
IN2a
IN3a
IN4a
IN1b
IN2b
IN3b
IN4b
-2dB
-2dB
+4.5dB
+4.5dB
MONa
MONb
OUTa
NJRC
Suuround
“eala ”
&
Simulated
Stereo
CSR
NJW1142M NJW1142L
NJW1142
- 2 -
■
■■
■ PIN CONFIGURATION
No. Symbol Function Symbol Function
1 IN1a Ach Input 1 16 V+ Power Supply Treminal
2 IN2a
Ach Input 2
17 Vref Reference Voltage
3 IN3a
Ach Input 3
18 CTL Pop Noise reduction for Bass Control
4 IN4a
Ach Input 4
19 CTH Pop Noise reduction for Treble Control
5 MONa Ach Monitor Output 20 AGC AGC Filter
6 SR FIL Surround Filter 21 OUTb Bch Output
7 TONE-Ha Ach Trebl e Fi lter 22 LINEb Bch LINE Output (+4.5dB)
8 TONE-La Ach Bass Filter 23 TONE-Lb Bch Bass Filter
9 LINEa Ach LINE Output (+4.5dB) 24 TONE-Hb Bch Trebl e Fi lter
10 OUTa Ach Output 25 CSR P op Nois e Reduct i on for S urround Control
11 CVA Pop Noise Reduction for Ach Volume & Balance 26 MONb B ch Monitor Output
12 CVB P op Noise Reduction for Bch Vol um e & Balance 27 IN4b
Bch Input 4
13 SDA S DA Data Input (I
2
C BUS) 28 IN3b
Bch Input 3
14 SCL SCL Clock Input (I
2
C BUS) 29 IN2b
Bch Input 2
15 GND GND Terminal 30 IN1b
Bch Input 1
16
30
29
28
27
26
25
24
23
22
21
18
19
20
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
IN1a
IN2a
IN3a
IN4a
IN1b
IN2b
IN3b
IN4b
MONa
MONb
TONE - Ha
TONE - Hb
TONE - La
LINEa
TONE - Lb
LINEb
OUTa
OUTb
CVb
CTH
CTL
SDA
SCL
GND
Vref
V+
AGC
CVa
CSR
SR FIL
16
NJW1142
-3-
■
■■
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
12 V
Power Dissipation P
D
700 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)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Voltage V
+
8.0 9.0 10.0 V
Supply Current I
CC
No Signal - 10.0 25.0 mA
Reference Voltage V
REF
No Signal 4.0 4.5 5.0 V
Maximum Input Voltage V
IM
VOL=-20dB, THD=3% 2.8 3.0 - Vrms
Maximum Output Voltage1 V
OM1
OUTPUT
VOL=0dB, THD =1% - 2.5 - Vrms
Maximum Output Voltage2 V
OM2
LINEOUT
VOL=0dB, THD =1% - 2.5 - Vrms
MON OUT Gain G
VMON
MON OUT - -2.0 - dB
LINEOUT Gain G
VLINE
LINEOUT, VOL=0dB 2.5 4.5 6.5 dB
Maximum Gain G
VMAX
VOL=0dB -2.0 0.0 2.0 dB
Minimum Gain G
VMIN
VOL=Mute, Vin=1Vrms
BW=400Hz to 30kHz - - -70 dB
Channel Balance G
CB
VOL=0dB -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
BW=400Hz to 30kHz - - -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
BW=400Hz to 30kHz - - -70 dB
Total Harmonic Distortion THD Vo=0.5Vrms
BW=400Hz to 30kHz - - 0.5 %
Input Selector Cross Talk CT Vin=1Vrms
BW=400Hz to 30kHz - - -70 dB
Channel Separation CS Vin=1Vrms
BW=400Hz to 30kHz - - -70 dB
Output Noise 1 V
NO1
VOL=0dB
BW=400Hz to 30kHz -
- -90
(31.6) -85
(56.2) dBV
(µVrms)
Output Noise 2 V
NO2
VOL=Mute
BW=400Hz to 30kHz -
- -106
(5.0) -96
(15.8) dBV
(µVrms)
Output Noise 3 V
NO3
LINEOUT, VOL=0dB
BW=400Hz to 30kHz -
- -85
(56.2) -80
(100) dBV
(µVrms)
Output Noise 4 V
NO4
LINEOUT, VOL=Mute
BW=400Hz to 30kHz -
- -101
(8.9) -91
(28.2) dBV
(µVrms)
NJW1142
- 4 -
■
■■
■ ELECTRICAL CHARACTERISTICS ( Ta=25°C, V
+
=9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz)
●
●●
● TONE CONTROL (Tone Control-ON)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
High Frequency Boost HF
BST
TREBLE=+15dB, f=10kHz 12.5 15.0 17.5 dB
High Frequency Flat HF
FLT
TRBE=0dB, f=10kHz -2.0 0.0 2.0 dB
High Frequency Cut HF
CUT
TREBLE=-15dB, f=10kHz -17.5 -15.0 -12.5 dB
Low Frequency Boost LF
BST
BASS=+15dB, f=100Hz 12.5 15.0 17.5 dB
Low Frequency Flat LF
FLT
BASS=0dB, f=100Hz -2.0 0.0 2.0 dB
Low Frequency Cut LF
CUT
BASS=-15dB, f=100Hz -17.5 -15.0 -12.5 dB
●
●●
● SUB-TONE CONTROL (Sub-Tone Control-ON)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
High Frequency Boost SHF
BST
SUB-TREBLE=+3dB,
f=10kHz 2.0 3.0 4.0 dB
High Frequency Flat SHF
FLT
SUB-TREBLE=0dB,
f=10kHz -2.0 0.0 2.0 dB
High Frequency Cut SHF
CUT
SUB-TREBLE=-3dB,
f=10kHz -4.0 -3.0 -2.0 dB
Low Frequency Boost SLF
BST
SUB-BASS=+3dB,
f=100Hz 2.0 3.0 4.0 dB
Low Frequency Flat SLF
FLT
SUB-BASS=0dB,
f=100Hz -2.0 0.0 2.0 dB
Low Frequency Cut SLF
CUT
SUB-BASS=-3dB,
f=100Hz -4.0 -3.0 -2.0 dB
●
●●
● AGC (AGC-ON)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
AGC BOOST AGC
BST
Vin=50mVrms 1.5 3.5 5.5 dB
AGC FLAT 1 AGC
FLT1
Vin=300mVrms -2.5 0.0 2.5 dB
AGC FLAT 2 AGC
FLT2
Vin=400mVrms -2.5 0.0 2.5 dB
AGC FLAT 3 AGC
FLT3
Vin=500mVrms -2.5 0.0 2.5 dB
AGC FLAT 4 AGC
FLT4
Vin=600mVrms -2.5 0.0 2.5 dB
AGC CUT AGC
CUT
Vin=2Vrms -14 -10 -6.0 dB
●
●●
●SURROUND (SURROUND-ON)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Simulated Stereo A SR
SIMA
Ain+Bin → Aout, f=1kHz 1.0 3.0 5.0 dB
Simulated Stereo B SR
SIMB
Ain+Bin → Bout, f=1kHz 1.0 3.0 5.0 dB
Surround 3D1 SR
3D1
Ain → Aout, f=100Hz 8.0 10.0 12.0 dB
Surround 3D2 SR
3D2
Ain → Aout, f=10kHz -2.0 0.0 2.0 dB
Surround 3D3 SR
3D3
Ain → Bout, f=100Hz 4.5 6.5 8.5 dB
NJW1142
-5-
■
■■
■ I
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 Inp ut Vo ltage V
IL
0 - 1.5 V
High Level Input Current I
IH
- - 10 µA
Low Level Input Curr ent I
IL
- - 10 µA
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
- - 100 kHz
Data Change Minimum Waiting Time t
BUF
4.7 - - µs
Data Transfer Start Minimum Waiting Time t
HD:STA
4.0 - - µs
Low Level Clock Pulse Wid th t
LOW
4.7 - - µs
High Level Clock Pulse Width t
HIGH
4.0 - - µs
Minimum Start Preparation Waiting Time t
SU:STA
4.7 - - µs
Minimum Data Hol d Time t
HD:DAT
5.0 - - µs
Minimum Data Preparation Time t
SU:DAT
250 - - ns
Rise T i me t
R
- - 1.0 µs
Fall Time t
F
- - 300 ns
Minimum S top Preparation Waiting Time t
SU:STO
4.0 - - µs
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
NJW1142
- 6 -
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
1
2
3
4
27
28
29
30
IN1a
IN2a
IN3a
IN4a
IN4b
IN3b
IN2b
IN1b
Ach Input 1
Ach Input 2
Ach Input 3
Ach Input 4
Bch Input 4
Bch Input 3
Bch Input 2
Bch Input 1
V+/2
5
9
10
21
22
26
MONa
LINEa
OUTa
OUTb
LINEb
MONb
Ach Monitor Output (-2dB)
Ach LINE Output (4 .5dB)
Ach Output (0dB)
Bch Output (0dB)
Bch LINE Output (4 .5dB)
Bch Monitor Output (-2dB)
V+/2
6 SR FIL Surround Filter
V+/2
7
24 TONE-Ha
TONE-Hb Ach Treble Filter
Bch Treble Filter
V+/2
8
23 TONE-La
TONE-Lb Ach Bass Filter
Bch Bass Filter
V+/2
20k
80k
50
FB
20k
FB
12k
FB
12k
8k (eala)
24k (sim)
FB
NJW1142
-7 -
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
20 AGC AGC Filter
0.6V
11
12 CVa
CVb
Pop Noise Reduction for Ach
Volume & Balance
Pop Noise Reduction for Bch
Volume & Balance
V+/2 - 0.7V
13
14 SDA
SCL SDA Data Input (I
2
C BUS)
SCL Clock Input (I
2
C BUS)
-
15 GND GND Terminal
0V
16 V+ Power Supply Terminal
V+
17 Vref Reference Voltage
V+/2
400
400
12k
8k
200k
8k
VREG 5V
4k
SCL:GND
SDA:ACK
NJW1142
- 8 -
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
18
19 CTL
CTH
Pop Noise reduction
for Bass Control
Pop Noise reduction
for Treble Control
V+/2 - 0.7V
25 CSR Pop Noise Reduction
for Surround Control
0.6V
32k
36k
NJW1142
-9 -
■
■■
■ APPLICAT ION CIRCUIT
16
30
29
28
27
26
25
24
23
22
21
18
19
20
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
4.7
µ
F
4.7
µ
F
2.2nF
100nF
2.2nF
100nF
4.7
µ
F
4.7
µ
F
4.7
µ
F
1
µ
F
IN1a
IN2a
IN3a
IN4a
IN1b
IN2b
IN3b
IN4b
MONa
MONb
TONE - Ha
TONE - Hb
TONE - La
LINEa
TONE - Lb
LINEb
OUTa
OUTb
CVb
1
µ
F
1
µ
F
CTH
CTL
SDA
SCL
GND
Vref
V+
22
µ
F
1
µ
F
4.7
µ
F
1
µ
F
AGC
CVa
0.33
µ
F
CSR
SS FIL
16
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
22nF
1
µ
F
(NOTE)
1. Separate the I
2
C bus line from the following terminals for avoiding digital noise problem.
Pin No. Symbol Pin No. Symbol Pin No. S ym bol
6 SS FIL 8 TONE-La 24 TONE-Hb
7 TONE-Ha 23 TONE-Lb - -
NJW1142
- 10 -
■
■■
■ 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 ADDRESS
MSB LSB
1 0 0 0 0 0 1 R/W
R/W=0: Write mode for register setting
R/W=1: Not available
♦
♦♦
♦ CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, AGC, Surround, Tone Control, AUX).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→05H→00H
BIT
Select
Address
D7 D6 D5 D4 D3 D2 D1 D0
00H
VOL
01H
CHS BAL SUR1 SUR0
02H
BCB BASS BCSB SUB-BASS
03H
BCT TREB BCST SUB-TREB
04H
Don’t Care
05H
OUT
SEL
AGC1 AGC0 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
NJW1142
- 11 -
■
■■
■ I
2
C CONTROL COMMAND DESCRIPTION
●
●●
●MASTER VOLU ME CONTRO L
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
The volume control for both Ach and Bch (0.33dB/step).
The volume is consisted of volume1 and volume2 and the level is divided into half to each volume1 and
volume2.
●
●●
●BA LANCE, AGC AND SURROUND SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
01H CHS BAL SR1 SR0
•CHS: Channel select for balance control
“0”: Ach “Bch is attenuated”
“1”: Bch “Ach is attenuated”
•BAL: Balance control for both Ach and Bch (1dB/Step)
The balance is consisted of volume1 and volume2 and the level is divided into half to each volume1 and
volume2.
•”SR1”, “SR0”: Surround Mode select
Surround Mode
SR1
(D1) SR0
(D0)
Surround Off (Bypass) 0 0
Simulated Stereo 0 1
eala eff ect larg e 1 0
eala eff ect sm all 1 1
●
●●
●TONE CONTROL BASS SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
02H BCB BASS BCSB SUB-BASS
•BCB: Boost cut select for Bass control
“0”: Cut
“1”: Bo ost
•BASS: BASS control
Cut Level: -15dB to 0dB (1dB/Step)
Boost Level : 0dB to +15 dB ( 1dB/ Step)
•BCSB: Boost cut select for SUB-BASS control
“0”: Cut
“1”: Bo ost
•SUB-BASS: SUB- BASS control (1dB/Step)
Sub-Cut Level: -3dB to 0dB (1dB/Step)
Sub-Boost Level: 0dB to +3dB (1dB/Step)
NJW1142
- 12 -
●
●●
●TONE CONTROL TREBLE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
03H BCT TREB BCST SUB-TREB
•BCT: Boost cut select for Treble control
“0”: Cut
“1”: Bo ost
•TREB: Treble control (1dB/step)
Cut Level: -15dB to 0dB (1dB/Step)
Boost Level : 0dB to +15 dB ( 1dB/ Step)
•BCST: Boost cut select for Sub-Treble control
“0”: Cut
“1”: Bo ost
•SUB-TREB: Sub-Treble control (1dB/step)
Sub-Cut Level: -3dB to 0dB (1dB/Step)
Sub-Boost Level: 0dB to +3dB (1dB/Step)
●
●●
●OUTPUT AND AUXILIARY SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
05H OUT SEL AGC1 AGC0 AGC
Don’t Care
•OUT: ON/OFF Switch for OUTPUT
“0”: OFF (MUTE)
“1”: ON
•SEL: Input Selector SEL
Input Select D6 D5 D4
IN1a and IN1b 0 1 0
IN2a and IN2b 0 1 1
IN3a and IN3b 1 0 0
IN4a and IN4b 1 0 1
• AGC1: AGC Level Setting
AGC Level AGC1
(D3) AGC0
(D2) AGC
(D1)
300mVrms 0 0 1
400mVrms 0 1 1
500mVrms 1 0 1
600mVrms 1 1 1
AGC Off ✳ ✳ 0
✳ Don’t Care
NJW1142
- 13 -
!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
NJW1142
- 14 -
!MASTER VOLU ME (Con t 'd )
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
-81 0C 0 0 0 0 1 1 0 0
-82 09 0 0 0 0 1 0 0 1
-83 06 0 0 0 0 0 1 1 0
-84 03 0 0 0 0 0 0 1 1
Mute 00 0 0 0 0 0 0 0 0
NJW1142
- 15 -
!
!!
!BALANCE (Select Address: 01H)
Channel
Select (CHS) D7
Ach (Bch is attenuated) 0
Bch (Ach is attenuated) 1
BAL
Gain (dB) D6 D5 D4 D3 D2
0 0 0 0 0 0
-1 0 0 0 0 1
-2 0 0 0 1 0
-3 0 0 0 1 1
-4 0 0 1 0 0
-5 0 0 1 0 1
-6 0 0 1 1 0
-7 0 0 1 1 1
-8 0 1 0 0 0
-9 0 1 0 0 1
-10 0 1 0 1 0
-11 0 1 0 1 1
-12 0 1 1 0 0
-13 0 1 1 0 1
-14 0 1 1 1 0
-15 0 1 1 1 1
-16 1 0 0 0 0
-17 1 0 0 0 1
-18 1 0 0 1 0
-19 1 0 0 1 1
-20 1 0 1 0 0
-21 1 0 1 0 1
-22 1 0 1 1 0
-23 1 0 1 1 1
-24 1 1 0 0 0
-25 1 1 0 0 1
-26 1 1 0 1 0
-27 1 1 0 1 1
-28 1 1 1 0 0
-29 1 1 1 0 1
-30 1 1 1 1 0
Mute 1 1 1 1 1
NJW1142
- 16 -
!TONE CONTROL BASS (Select Address: 02H)
BCB
Bass
Cut or Boost D7
Cut 0
Boost 1
BASS
Cut Gain
(dB) Boost Gain
(dB) D6 D5 D4 D3
-15 15 1 1 1 1
-14 14 1 1 1 0
-13 13 1 1 0 1
-12 12 1 1 0 0
-11 11 1 0 1 1
-10 10 1 0 1 0
-9 9 1 0 0 1
-8 8 1 0 0 0
-7 7 0 1 1 1
-6 6 0 1 1 0
-5 5 0 1 0 1
-4 4 0 1 0 0
-3 3 0 0 1 1
-2 2 0 0 1 0
-1 1 0 0 0 1
0 0 0 0 0 0
!TONE CONTROL SUB-BASS (Select Address: 02H)
BCSB Sub-Bass
Cut or Boost D2
Cut 0
Boost 1
SUB-BASS
Cut Gain
(dB) Boost Gain
(dB) D1 D0
-3 3 1 1
-2 2 1 0
-1 1 0 1
0 0 0 0
NJW1142
- 17 -
!
TONE CONTROL TREBLE (Select Address: 03H)
BCT Treble
Cut or Boost D7
Cut 0
Boost 1
TREB
Cut Gain
(dB) Boost Gain
(dB) D6 D5 D4 D3
-15 15 1 1 1 1
-14 14 1 1 1 0
-13 13 1 1 0 1
-12 12 1 1 0 0
-11 11 1 0 1 1
-10 10 1 0 1 0
-9 9 1 0 0 1
-8 8 1 0 0 0
-7 7 0 1 1 1
-6 6 0 1 1 0
-5 5 0 1 0 1
-4 4 0 1 0 0
-3 3 0 0 1 1
-2 2 0 0 1 0
-1 1 0 0 0 1
0 0 0 0 0 0
!
TONE CONTROL SUB-TREBLE (Select Address: 03H)
BCST Sub-Treble
Cut or Boost D2
Cut 0
Boost 1
SUB-TREB
Cut Gain
(dB) Boost Gain
(dB) D1 D1
-3 3 1 1
-2 2 1 0
-1 1 0 1
0 0 0 0
NJW1142
- 18 -
!
TYPICAL CHARACTERISTICS
-100
-80
-60
-40
-20
0
-80-70-60-50-40-30-20-100
Gain vs Volume Control
Gain [dB]
Volume Control [dB]
V+=9V, Vin(Ach)= 1Vrms,f=1kHz,
OUTPUT,Rg=600Ω
MUTE
75,25,-20oC
-120
-110
-100
-90
-80
-70
-60
-80-70-60-50-40-30-20-100
Output Noise vs Volume Control
Gain [dB]
Volume Control [dB]
V+=9V, OUTPUT,BW=400-30kHz
Rg=600Ω, Ta=25
o
C
MUTE -120
-100
-80
-60
-40
050100
Output Noise vs Temperature
Output Noise [dBV]
Temparature [oC]
V+=9V , Rg=600Ω, BW=4 00Hz - 3 0k Hz
Vol=0dB
Vol=MUTE
-100
-80
-60
-40
-20
0
-30 -20 -10 0 10 20 30
Ga in vs B alan ce Co n tro l
G a in [dB ]
Balance Cont rol [dB]
V +=9V, Vin=1Vrms, f=1k Hz, Rg=600
Ω
Vo(Ach)
75, 25, -20
o
C
Vo(Bch)
75, 25, -20
o
C
MUTE -30 -20 -10 0 -10 -20 -30 MUTE
0
2
4
6
8
10
024681012
S up ply Curren t vs S upp ly Vo ltage
S upply C urre nt [m A ]
Supply Voltage [V]
Ta=25
o
C
4
5
6
7
8
9
10
0 50 100
Su pp ly Current vs T emparature
S upply C urre nt [m A ]
Tem p arature [
o
C]
V+=9V
NJW1142
- 19 -
!
TYPICAL CHARACTERISTICS
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Input Voltage
THD+N [ % ]
Input Voltage [Vrms]
V+=9V, Vin(Ac h ), f=1kHz, Vo(Ac h)OU TPU
T
Rg=600Ω, BW=40 0H z - 3 0kH z , Vol = - 20 dB
75
o
C
-20
o
C25
o
C
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Input Voltage
THD+N [ % ]
Inpu t Voltage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPU
T
Rg=600Ω, BW=400Hz-3 0 kHz, Ta= 25
o
C
0dB
-30dB
-20dB
-10dB
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Output Voltage
THD+N [ % ]
Outpu t Volta ge [Vrms]
V+=9V, Vin(Ach), f=1 kHz, Vo(Ach)OUTPUT
BW=400Hz- 30kHz, Rg=600Ω, Ta= 25
o
C
0dB
-30dB
-20dB -10dB 0.01
0.1
1
10
100
0.01 0.1 1
THD +N vs O utput Voltag e
THD+N [ % ]
Output Vol tage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPU
T
Rg=600Ω, BW=400Hz-30kHz, Vol=0dB
75
o
C
-20
o
C
25
o
C
0
20
40
60
80
100
120
100 1000 10
4
M UT E L evel vs Frequ ency
M UT E L e ve l [dB ]
Frequency [Hz]
V+=9V, V in(Ach)=1Vrm s, Vol=MUTE
Vo(Ach)O U TPUT, R g=600
Ω
, Ta =25
o
C
0
20
40
60
80
100
100 1000 10
4
Channel Separation vs Frequen cy
Channel Separation [dB]
Freqency [Hz]
V+=9V , Vin=1Vrms, f=1kHz, Vo=OUTP U T
Rg=600
Ω
, Vol=0dB, Ta=25
o
C
Vin(Ach)-Vo(Bch)
Vin(Bch)-Vo(Ach)
NJW1142
- 20 -
!
TYPICAL CHARACTERISTICS
-20
-10
0
10
20
100 1000 10
4
Gain vs Frequency (TONE)
Gain [dB]
Frequency [Hz]
V+=9V, Vin(Ach)=0.1Vrms,Gv:3dB steps
Vo (A c h), R g = 60 0Ω, T a =2 5
o
C
0.001
0.01
0.1
1
0.001 0.01 0.1 1
AGC Control
Output Voltage [Vrms]
Input Voltage [Vrms]
V+=9V, Vin(Ach+Bch), f=1kHz, Vo(Ach)OUTPUT
Rg=600
Ω
, Ta=2 5
o
C
300mV
400mV
500mV
600mV
OFF
-2
-1
0
1
2
0246810
AG C Attack T ime (C:20pin =0.33
µ
µµ
µ
F)
Output Voltage [V]
Time [ms]
V+=9V, V in (Ach+B ch)=1Vrms,f=20kH z,Vo(Ach)OUTPUT
AGC level= 0.3V,Rg=600
Ω,
Ta=25
o
C
-0.2
-0.1
0
0.1
0.2
0 100 200 300 400 500
AG C Reco very T ime (C:20pin =0.33
µ
µµ
µ
F)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+B ch)=1Vrms, f=10kHz,Vo(A ch)OUTPUT
AGC level= 0.3V ,Rg=600
Ω
,Ta=25
o
C
-20
-10
0
10
20
100 1000 10
4
Gain vs Frequency (eala&Simulated)
Gain [dB]
Frequency [Hz]
V+ = 9V, Vin=0.1Vr ms,OUTPUT, Rg=600Ω,
Ta=25
o
C
eala
AIN-AOUT
eala
AIN-BOUT
Simulated
(A+B)IN-AOUT
-100
-50
0
50
100
150
200
100 1000 10
4
Phase vs Frequency (Simulated)
Phase [deg]
Frequency [Hz]
V+=9V , Vi n( A+ B c h )= 0. 1 V rms, Rg=600Ω,
Ta=25
o
C
BchOUT
AchOUT
NJW1142
- 21 -
■
■■
■NOTE
Purchase of I
2
C components of New Japan Radio Co., Ltd or one of its sublicensed Associated Companies
conveys a license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided that
the system conforms to the I
2
C Standard Specification as defined by
[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 permi ssion of any right including
the industrial rights.
